Stewart Is a Musician and Often Takes "Speed" Before His

Multiple Choice

Stewart is a musician and often takes "speed" before his performances to help give him an "edge." Recently he has found that when he hasn't had a performance for several days and thus has not taken "speed," he begins to feel fatigued and dragged out.He becomes high, agitated, and can't concentrate on his music.Stewart is demonstrating ____.

A) an addiction
B) symptoms of withdrawal
C) psychological dependence
D) tolerance