When Anna Was Three Years Old, Her Aunt's Pet Parakeet

Multiple Choice

When Anna was three years old, her aunt's pet parakeet landed on her head and pecked at her scalp, hurting her. Following this incident, Anna was afraid of the parakeet. But over time, Anna has become afraid of anything that flies, including butterflies, large flying insects, and wild birds. This example illustrates the phenomenon of _____ in _____ conditioning.

A) instinctive drift; operant
B) stimulus discrimination; classical
C) biological preparedness; operant
D) stimulus generalization; classical