DrPham Is Studying the Brain of People Who Abuse Drugs,and

Dr.Pham is studying the brain of people who abuse drugs,and he is focused on the reward learning pathway.Upon close examination of the activity in this pathway,what is Dr.Pham likely to find is different between drug addicts and non-addicts?

A) The reward learning pathway is overactive in non-addicts.
B) The reward learning pathway is overactive in addicts.
C) The reward learning pathway responds to faster in addicts.
D) The reward learning pathway is not activated by normal events in addicts.