B, even if the most humane thing to do is A if you are gonna leave him to be infested, i really couldnt do it, and ax was right, too much risk not enough reward
A, I always thought trapping him was more of the cowards way out, its a long drawn out torture because they couldnt do the dirty deed, even tho i completely understand and cant reasonably expect someone to be able to do that, in the end killing him is the right thing to do