Lisa Has Been Using Crack for About Two Months Now

Multiple Choice

Lisa has been using crack for about two months now.Although she knows it is destroying her job performance and she has been reprimanded for missing work, she refuses to give it up.She says she can quit whenever she wants to and just uses crack because she enjoys it.She tells others who question her drug use to mind their own business and leave her alone.What is Lisa's level of involvement with the drug?

A) substance intoxication
B) substance use
C) substance use disorder
D) substance misuse