At the Supermarket,a Demonstrator Gives Away Free Samples of a New

At the supermarket,a demonstrator gives away free samples of a new pizza.He also gives each taster a coupon worth $1 off his or her grocery bill.This manufacturer is depending on the social process of ________ to increase sales.

A) the norm of reciprocity
B) deindividuation
C) group polarization
D) social facilitation Correct: Correct.The norm of reciprocity involves the tendency of people to feel obligated to give something in return after they have received something.
Incorrect: Incorrect.Social facilitation is an increase in performance caused by greater arousal.