Which Is the Best Example of Vicarious Conditioning

Which is the best example of vicarious conditioning?

A) After watching her friend, a smoker, die of cancer, Laura quit smoking.
B) A chimpanzee stacks boxes and climbs them to reach a piece of fruit.
C) Children act aggressively after watching a video of an aggressive adult.
D) You remember the layout of Disney World, even though you haven't been there in five years.