Every day on his way to work, Darnell passes a particular coffee shop. Before starting his job Darnell had never heard of the shop, but now that he sees it every day he stops there regularly and finds that it has become his favorite place to get a cup of coffee. According to research by Robert Zajonc, Darnell's liking of the coffee shop is due to the ________ effect.a. mere exposure
b. proximity
c. intrinsic motivation
d. proximal incentive