Alexis uses cocaine, which activates her sympathetic nervous system. expecting her dealer, her hands shake and her heart pounds when she hears a knock on the door. which alternative below correctly identifies the neutral stimulus, the cs, and the ucs? multiple choice neutral stimulus—knock on the door; cs—cocaine; ucs—cocaine neutral stimulus—knock on the door; cs—knock on the door; ucs—pounding heart neutral stimulus—knock on the door; cs—knock on the door; ucs—cocaine neutral stimulus—cocaine; cs—knock on the door; ucs—cocaine

The correct answer is -  Neutral stimulus is knock on the door;

CS is Knock on the door; and

UCS is cocaine.

Explanation:

A neutral stimulus is a type of stimulus that do not generates specific response initially but only brings attention but when it is used with the unconditioned stimulus (UCS) it becomes the conditioned condition (CS).

In this case, Alexis develops a CS from the neutral stimulus which is knock on the door with working with the UCS which is cocaine in this particular case.

Thus, the correct answer is - Neutral stimulus is knock on the door;

CS is Knock on the door;

UCS is cocaine.