Which of the following statements is true of social facilitation?

A) It is the process by which a person's performance is decreased in a group.
B) At high levels of arousal, our performance of simple tasks is facilitated.
C) It is a method for inducing compliance in which a small request is followed by a larger request.
D) It is the process by which a person's performance is increased when other members of a group engage in similar behavior.

Social facilitation is the phenomenon by which the performance of an individual is improved in the presence of others, particularly when performing a task that is easy or well-learned. This is often referred to as the "audience effect." So, option D is correct. Option A is incorrect because it describes social inhibition rather than social facilitation. Option B is partially correct but incomplete as it only applies to simple tasks, not complex ones. Option C is also incorrect as it refers to the foot-in-the-door technique, not social facilitation.