A
If I was the author of a game's plot, I'd likely have an ending I'd see as the proper one, but then there's alternatives for players that chose routes I wouldn't have favored. I'd then build my story off the one I viewed as the proper ending.
I think of Red Dead Redemption 2. I felt like the proper ending is the redemption path wherein Arthur ends up as a not-so-bad guy that we love and respect, but players can choose not to go that route. I'd consider the former the true, proper path, however, and I'd build off of that one specifically.
I'm not here for friends. I'm here for the truth to the best of my knowledge of it, even if it's not what people want to hear.