When Selma Was Five Years Old She, Was Terrified and Became

Multiple Choice

When Selma was five years old she, was terrified and became hysterical when her older brother dropped a spider down her shirt.Today, even the sight of a rubber spider is enough to make her agitated and uneasy.In this example of classical conditioning, having the spider dropped down her shirt by her older brother is:

A) an unconditioned response
B) a conditioned stimulus
C) an unconditioned stimulus
D) a conditioned response