Procter & Gamble, the Maker of Crest Brand Toothpaste, Has

Multiple Choice

Procter & Gamble, the maker of Crest brand toothpaste, has modified this brand to include whiteners. To encourage consumers to adopt this brand, P&G gave away free samples along with a high-value coupon on the purchase of a tube. The hope was that consumers would try the brand, purchase it at a discount, and finally buy it at full price. This is an example of _____.

A) step learning
B) staging
C) stepping
D) shaping
E) modeling