Suppose You Drive the Same Route to School Every Day

Multiple Choice

Suppose you drive the same route to school every day, passing the intersection of Main and Plum Streets. One afternoon, a car runs a red light at that intersection and hits your car. After that, every time you approach the intersection, your hands clutch the wheel and your heart beats faster. For you, the intersection has become

A) an unconditioned stimulus (US) .
B) an unconditioned response (UR) .
C) a reflexive stimulus (RS) .
D) a conditioned stimulus (CS) .