Is possible to complete the 100% of GTA V by choosing the A or B endings

grand-theft-auto-5

On GTA V, two of the three endings requires you to kill someone important.

There is the ending A called Something Sensible that makes you

Kill Trevor after chasing him to Murrieta Oil Field in El Burro Heights

And also the ending B called The Time's Come where you have to

Kill Michael after chasing him to Palmer-Taylor Power Station in Senora Way

Is possible to get the 100% of the game by choosing one of this endings? (maybe by completing all of the character-specific missions after The Big Score and prior to the ending)

Best Answer

According to the wiki:

spoilers

Before going to the last mission trigger, it is advisable to complete any remaining side-missions, etc. that may be required for 100% completion first as, depending on the player's choice, Michael or Trevor may no longer be available beyond this point, thereby rendering any activities/side missions specific to them inaccessible (even though their missions are not required for 100% completion). If Michael or Trevor possess any rare vehicle the player doesn't wish to lose, cars should also be exchanged before starting the final mission. Unless the player has already completed everything else (except Lester's assassination missions and other Franklin-specific sidequests), they must be careful not to take Franklin to his safehouse so as not to trigger the endgame.

answer(possible spoilers)

"even though their missions are not required for 100% completion".
So yes it is possible to get 100% completion with ending A or B. It doesn't matter which ending you choose. Because you can't play the side missions after you killed one of them, you might want to complete them before you kill the character.