Sylvia Used to Play with Balloons

Multiple Choice

Sylvia used to play with balloons. When she tried to blow up a balloon last week, it popped in her face and gave her quite a scare. Now, blowing up a balloon is so scary that Sylvia will not try it. In this example, the pop is a(n) _____ and the balloon is a(n) _____.

A) conditioned stimulus; unconditioned stimulus
B) unconditioned stimulus; conditioned stimulus
C) unconditioned response; conditioned response
D) conditioned response, ; unconditioned response