A perfume advertisement uses classical conditioning to increase product appeal. To do this, it pairs the attractive face of the actor Brad Pitt with its perfume Chanel No 5. If Brad Pitt elicits an innate response from you, he is being used as a(n):a. unconditioned stimulusb. conditioned responsec. unconditioned responsed. conditioned stimulus

a. unconditioned stimulus

Explanation:

Unconditioned stimulus: In psychology, the term "unconditioned stimulus" is described as one of the parts in the classical conditioning theory and is also denoted as UCS or US. It is defined as one of the stimuli that tend to trigger a particular response unreservedly what so ever is being presented without being trained in past and hence triggers the unconditioned response or UCR or UR.

In the question above, the given statement signifies the "unconditioned stimulus".

rain should be the answer.