I just need a short answer not an explanation

2. Dog Fright!

Chris' neighbors have a German Shepherd named Schultz. He has usually been on a chain, but one particular morning, he was running free in the neighbor's yard. Unfortunately for Chris, she was bitten by Schultz that morning, and ever since that time, whenever she sees any dog in the neighborhood, she becomes afraid and runs away. Identify the following variables of classical conditioning in this scenario:

Unconditioned Stimulus (US)
Unconditioned Response (UR)
Conditioned Stimulus (CS)
Conditioned Response (CR)