30 POINTS, WILL GIVE BRAINLIEST, PLS HURRY!!

Is the following scenario: "Alberto has major anxiety about tests. Alberto's teacher wears a Hawaiian shirt every time the class has a test. Now, just the sight of a Hawaiian shirt makes Alberto's hands get sweaty." a:

a. unconditioned stimulus
b. unconditioned response
c. neutral stimulus/conditioned stimulus
d. conditioned response