Final answer:
The psychologist might identify Mark as suffering from Social anxiety disorder (A). Mark's avoidance of situations where he might look foolish and embarrass himself, such as not trying out for the school play or avoiding speaking in front of groups, is indicative of social anxiety.
Step-by-step explanation:
The psychologist might identify Mark as suffering from Social anxiety disorder (A).
Mark's avoidance of situations where he might look foolish and embarrass himself, such as not trying out for the school play or avoiding speaking in front of groups, is indicative of social anxiety. Social anxiety disorder is characterized by a persistent fear of social situations and a strong desire to avoid them. Individuals with social anxiety often fear judgment, embarrassment, or rejection, leading to avoidance behaviors.
Social anxiety disorder is different from other disorders listed as options B, C, and D. Obsessive-compulsive disorder (B) involves repetitive and ritualistic behaviors, but it is not necessarily related to social situations. Narcissistic personality disorder (C) is characterized by an inflated sense of self-importance and a lack of empathy, which does not align with Mark's behavior. Antisocial personality disorder (D) involves disregard for others' rights and a lack of empathy, which is also incompatible with Mark's symptoms.