Answer:
Vicarious reinforcement is B. When a person's behavior changes based on consequences that happen to a model they are observing.
Step-by-step explanation:
Vicarious reinforcement refers to learning by observing other. Reinforcement is the strengthening of a behavior by rewarding the subject with a stimuli. Thus, vicarious reinforcement means one's behavior changes since he/she also wants to receive the reward they saw the other subject receive by following the same pattern as him/her.