A Teacher Notices That Victor, a Student in Her Class

A teacher notices that Victor, a student in her class, has been acting differently. He has quit the hockey team and stopped spending time with his friends. When she asks Victor about it, he withdraws. The teacher feels that she has seen a happy, popular, attractive boy become a disheveled-looking loner. She raises the issue with a guidance counselor, who thinks Victor may have a drug or alcohol problem. Given Victor's behavior, the guidance counselor and teacher should also consider that he

A) may be contemplating suicide.
B) has abused a child.
C) may just be going through a stage of adolescent development.
D) has joined a gang.