Connor Is Very Concerned That His Occasional Shyness and Concerns

Connor is very concerned that his occasional shyness and concerns about doing things the right way may mean that he has a psychological disorder. His friends and roommates view him as completely normal and think he is no more shy or worried than anyone else. In order for Connor to actually receive a DSM-type diagnosis, his symptoms must __________.

A) be present and active for two years
B) have begun expressing themselves in early childhood
C) correspond to specific criteria outlined in the manual itself
D) all of the above are correct answers