The Makers of a Health-Food Cereal Increased Sales by Offering

The makers of a health-food cereal increased sales by offering a $2 rebate to purchasers.Sales rose during the rebate period, then fell below pre-rebate sales numbers when the rebate ended.The author of your textbook would explain this by suggesting that ________.

A) the rebate convinced shoppers that the cereal was overpriced
B) extrinsic rewards decreased the intrinsic value purchasers placed on the cereal
C) the rebate decreased the status value of health food cereal
D) there was no longer any incentive for shoppers to purchase this cereal