Answer:
The correct answer is a. Ann's best friend gets a higher grade in math class than Ann did.
Step-by-step explanation:
According to self-evaluation maintenance theory, we feel more threatened by friends than strangers. Therefore, we tend to compare ourselves to a person who is psychologically close to us to determine how well we are doing. If that person surpasses us in an area we are used to excelling in, we are likely to feel bad about ourselves. To Ann, a stranger doing better than her is not that threatening. Her best friend becoming captain of the cheerleading team is also not important, since that is not an area she is concerned with. However, if her best friend - a person who is clearly psychologically close to her - does better than Ann does in an area that matter to her, that will make her feel bad. That is why the answer is a. Ann's best friend gets a higher grade in math class than Ann did.