Brian Is the Bassist and Vocalist for a Band with His

Multiple Choice

Brian is the bassist and vocalist for a band with his two brothers,cousin,and a college friend.Recently,he has begun to experience more and more intense anxiety as he sings in front of crowds.As a result,he has begun to ask his bandmates to sing the songs for him.Brian's anxiety lessens when the focus of the crowd is not on him,demonstrating that Brian's avoidance of singing is being

A) positively reinforced.
B) positively punished.
C) negatively punished.
D) negatively reinforced.