Automobile advertisements, especially those for sports cars, often feature young, beautiful women. Smart advertisers know and research confirms that men rate new cars whose ads include an attractive female as faster, more appealing, better designed, and more desirable than cars with similar ads that do not include an attractive female. What is the unconditioned response?
(A) The car
(B) The advertisement
(C) The attractive women
(D) Desire to buy the car
(E) Finding the woman attractive
Answer: D