The answer is A. People tend to perform well-practiced skills better in front of an audience. According to the page 34 of your textbook.
Social facilitation refers to how people perform when other people are around.
Humans are physiologically and psychologically aroused by the mere presence of
other people. Therefore, their behavior is somewhat different than when they’re
alone. In general, people perform well-practiced skills better in front of an
audience.
