Jeff's Dog Barks and Growls at the Sound of a Stranger's

Multiple Choice

Jeff's dog barks and growls at the sound of a stranger's car pulling into his driveway, yet the dog wags its tail and gets excited at the sound of Jeff's car. In this scenario, the difference in the dog's reactions to the sound of Jeff's car and that of a stranger's car is due to _________.

A) discrimination
B) generalization
C) spontaneous recovery
D) free association