Lenny Is the Bassist and Vocalist for a Band with His

Lenny 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.Lenny's anxiety lessens when the focus of the crowd is not on him,demonstrating that Lenny's avoidance of singing is being

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