Mark's Dog, Gus, Sits Whenever He Says, "Sit

Multiple Choice

Mark's dog, Gus, sits whenever he says, "Sit." Mark now wants to teach Gus a new trick.He wants to teach him to bark each time he says, "Speak," but whenever Mark says, "Speak," Gus sits.The dog's behavior is most likely an example of

A) generalization.
B) habituation.
C) contiguous occurrences.
D) contingent occurrences.