You Conduct an Experiment in Which You Expose a Rat

Multiple Choice

You conduct an experiment in which you expose a rat repeatedly to a 440 Hz tone and an electric shock. After a few trials, the rat begins to show signs of fear in response to the tone. In this paradigm, the electric shock is the ________, while the tone is the ________.

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