Which of the Following Scenarios Is an Example of Social

Which of the following scenarios is an example of social facilitation?

A) Monita, who is a soccer player, performs better when there is a large group of people watching.
B) George chooses not to engage in certain tasks because he knows other members of the group will eventually do the work.
C) Kiera, a gymnast, falls off the balance beam because she has not mastered the yet.
D) Dabneh loves engaging in conversation with her friends.