A Pigeon Responds on a Multiple Schedule in Which a VI

Multiple Choice

A pigeon responds on a multiple schedule in which a VI 30-second schedule is in effect both when the response key is red and when the response key is green.Next,the schedule associated with the green key is changed to extinction.Which of the following changes in behavior would be an example of positive behavioral contrast-

A) an increase in response rate on the red key
B) a decrease in response rate on the red key
C) an increase in response rate on the green key
D) a decrease in response rate on the green key