Sara has a habit of stealing money from her brother charlie. when he found out, charlie rebuked sara in the presence of his friends. which statement holds true for charlie's behavior toward sara?

The answer is : B.) Charlie uses social reinforcement.
Simply being in the presence of other people can serve as a natural social reinforcement.  Reinforcement theory is the process of shaping behavior by controlling the consequences of the behavior. In reinforcement theory a combination of rewards and/or punishments is used to reinforce desired behavior or extinguish unwanted behavior.