If the Sound of a Clap Occurs Just Before a Puff

Multiple Choice

If the sound of a clap occurs just before a puff of air is delivered to the eye,the person will,after several repetitions,learn to blink to the sound of the cap.Blinking to the sound of the clap would be considered a

A) neutral stimulus.
B) conditioned response.
C) spontaneous response.
D) conditioned stimulus.