[SalesForce] Radio button and pick list fields value is not getting stored in the salesforce org

After finishing the basic lightning component trail I started writing another component of my own choice and when I hit the submit button I get the below error
if I cut out the pickList field and radio button everything works as expected

Now I am not getting any error but the options selected from the pickList field and radio button are not storing in the Org

I have got the pickList field and radio button from slds website.

component:

  <aura:component controller="surveyApexController">
    <aura:attribute name="surveys" type="General_Survey__c[]" />
    <aura:attribute name="newSurvey" type="General_Survey__c" 
                    default="{'sobjectType':  'General_Survey__c',
                             'Name': '',
                             'Age__c': 0,
                             'Occupation__c': '',
                             'Favorite_place__c': ''
                             }" />

    <lightning:layout>
        <lightning:layoutItem padding="around-small" size="12">
            <div arialabelledby="newSurveyForm">
                <!--Boxed area-->
                <fieldSet class="slds-box slds-theme-default slds-container--large">
                    <!-- writing name on the border layout -->
                    <legend id="boxyarea" class="slds-text-heading--large
                                                 slds-p-vertical--large">
                        Survey Form
                    </legend>
                    <form class="slds-form-stacked">
                        <div class="slds-grid slds-wrap">
                            <div class="slds-medium-size_1-of-4 slds-p-right_large" >
                                <lightning:input aura:id="expenseform" label="Expense Name"
                                                 name="expensename"
                                                 value="{!v.newSurvey.Name}"
                                                 placeholder="Please enter your name here"
                                                 required="true"/>
                            </div>
                            <div class="slds-medium-size_1-of-6 slds-p-right_large">
                                <lightning:input type="number" aura:id="expenseform" label="Age"
                                                 name="expenseage"
                                                 min="18"

                                                 value="{!v.newSurvey.Age__c}"
                                                 messageWhenRangeUnderflow="Age must be 18 or above"/>    
                            </div>
                            <div class="slds-medium-size_1-of-5 ">
                                <div class="slds-form-element__control">
                                    <lightning:select aura:id="expenseform" name="select1" label="Occupation">
                                        <option value="{! v.newSurvey.Favorite_place__c }">Other</option>
                                        <option value="{! v.newSurvey.Favorite_place__c }">Engineer</option>
                                    </lightning:select>
                                </div>
                            </div>
                        </div>
                        <legend class="slds-form-element__legend slds-form-element__label 
                                       slds-text-heading--small slds-p-top_large">
                            Q. This is the first question
                        </legend>
                        <div class="slds-form-element__control">
                            <span class="slds-radio">
                                <lightning:input aura:id="expenseform" type="radio" label="This is the first option" name="options" 
                                                 value="{! v.newSurvey.Favorite_place__c }" />
                                <lightning:input aura:id="expenseform" type="radio" label="This is the 2nd option" name="options" 
                                                 value="{! v.newSurvey.Favorite_place__c }" />
                            </span>

                        </div>       
                        <lightning:button label="Create Expense" 
                                          class="slds-m-top--medium"
                                          variant="brand"
                                          onclick="{!c.clickCreate}"/>    
                    </form>
                </fieldSet>
            </div>
        </lightning:layoutItem>
    </lightning:layout>
</aura:component>

controller:

({
    clickCreate: function(component, event, helper) {
        //expenseform is th id field of all the input fields 
        var validExpense = component.find('expenseform').reduce(function (validSoFar, inputCmp) {
            // Displays error messages for invalid fields
            inputCmp.showHelpMessageIfInvalid();
            return validSoFar && inputCmp.get('v.validity').valid;
        }, true);
        // If we pass error checking, do some real work
        if(validExpense){
            // Create the new expense
            // new expense is the attribute name containing the default values 
            var newSurvey = component.get("v.newSurvey");
            console.log("Create expense: " + JSON.stringify(newSurvey));
            helper.createExpense(component, newSurvey);
        }
    },
})

helper:

({
    //here expense is the parameter that we passing in saveExpense function in Apex class
    createExpense: function(component, gSurvey) {
        //saveExpense is a name of the function that we are passing 
        var action = component.get("c.saveSurvey");
        //here again expense is the name of the method parameter
        action.setParams({
            "gSurvey": gSurvey
        });
        action.setCallback(this, function(response){
            var state = response.getState();
            if (state === "SUCCESS") {
                //expenses is the attribute name with the type of array object
                var surveys = component.get("v.surveys");
                surveys.push(response.getReturnValue());
                component.set("v.surveys", surveys);
            }
        });
        $A.enqueueAction(action);
    }
})