Marnie Is Playing in the Neighborhood When She Feels Pain

Marnie is playing in the neighborhood when she feels pain in her leg and looks down to see a dog clamped on her in a vicious bite. Marnie quite naturally felt fear in response to the pain of the bite, but now also finds that she is terrified of dogs, too. In this example, the dog is the

A) unconditioned response.
B) conditioned response.
C) unconditioned stimulus.
D) conditioned stimulus.