Tom Feels That He Meets the Criteria for Social Phobia

Tom feels that he meets the criteria for social phobia.He learned of these symptoms from ads for a free trial of therapy.He decides he would like to participate in the study.Tom might be excluded from participating in the study if he

A) is depressed because of his social phobia .
B) smokes cigarettes.
C) also has post-traumatic stress disorder.
D) has a relative with social phobia.