When Micah Was Two Years Old, He Was Frightened by His

Multiple Choice

When Micah was two years old, he was frightened by his Aunt Mabel's little dog, which nipped him on the leg. Because of the incident, Micah developed a strong fear of small dogs but not of large dogs. This best illustrates:

A) spontaneous recovery.
B) stimulus discrimination.
C) stimulus generalization.
D) higher order conditioning.