Sally Likes Jon and Readily Agrees Whenever He Asks Her

Multiple Choice

Sally likes Jon and readily agrees whenever he asks her out. She likes Sim less than she likes Jon and accepts a date with him occasionally. When she falls in love with Edgar, she informs both Jon and Sim that she will no longer go out with them. Jon quickly stops asking her out, but Sim persists for several months. Sim's behavior illustrates _____.

A) the partial reinforcement effect
B) the peak shift effect
C) an extinction burst
D) spontaneous recovery