As a Child,Eva Had a Nightmare About Clowns,and She Now

Multiple Choice

As a child,Eva had a nightmare about clowns,and she now feels fearful on seeing clowns as an adult.One explanation for her fear is that:

A) the nightmare was a CS that produce the CR of fear.
B) clowns are a CS that produce the UR of fear.
C) the nightmare was a US that produce the CR of fear.
D) clowns are a CS that produce the CR of fear.