Don Is Delighted When He Successfully Conditions His Roommate,Lloyd,to Cringe

Multiple Choice

 Don is delighted when he successfully conditions his roommate,Lloyd,to cringe at the sound of the squeaky drawer by pairing the squeak with a ping-pong ball to his roommate's head.He decides continue his experiment with classical conditioning and creates another squeaky noise by dragging his chair legs across the floor.At first Lloyd cringes at the new squeak,but with continued "trials" in which the drawer squeak is paired with a ping-pong ball to the head but the chair leg squeak is not,Lloyd stops cringing to the chair leg squeak,illustrating ____. 

A) habituation
B) dishabituation
C) discrimination
D) generalization