The Biological Explanation of Substance Abuse Is That ______

The biological explanation of substance abuse is that ______.

A) people commonly try drugs based on the recommendation or observation of others
B) drug use is often linked to people's expectancies about the effects of a drug
C) some people are born with a genetic predisposition toward physiological dependence on various drugs such as alcohol or nicotine
D) drugs help people control or express unconscious needs and impulses