Travis Is Listening to New Loud Music on His Phone

Multiple Choice

Travis is listening to new loud music on his phone and accidentally steps into traffic and gets hit by a car. For several days later he experiences fear in seemingly random places-that is, he doesn't know what makes him afraid. What could have happened?

A) Fear acquired in his accident generalized to other stimuli similar to the scene.
B) Some relatively unnoticeable stimuli were potentiated by the loud music at the time of the car accident, and he is randomly encountering these stimuli which now elicit fear.
C) He will only be afraid when listening to the song he was hearing at the time of the accident, so he must be hearing that song.
D) He could have protected against conditioning with external stimuli by chewing strongly flavored gum, a gustatory stimulus, while he crossed the street.