Jenny is beginning first grade. Everyday, the teacher walks into the classroom and loudly smacks a ruler on the desk, causing the children to jump. The teacher develops a habit of clearing
her throat, “Uhmmm,” and then slamming down the ruler. Soon all the teacher has to do is clear her throat and the children jump.

Label the following for this scenario:
a. Unconditioned Stimulus (US)
b. Conditioned Stimulus (CS)
c. Unconditioned Response (UR)
d. Conditioned Response (CR)