Studies in grocery stores show that shoppers purchase more of an item if it is on an aisle end-cap. Psychologists hypothesize that seeing an item prominently displayed at the end of an aisle makes many shoppers willing to buy more of it because they think the prominent display means it is on sale, and that they should purchase the item while it is discounted.

Which of the following, if true, most strongly supports the psychologists' interpretation of the studies?
Choices
A
The effect noted in the study is also seen in bookstores and large chain discount stores.

B
Shoppers who first see that same item in its regular placement on a shelf are less likely to purchase the item than they are to purchase comparable, less expensive items.

C
Virtually all of the shoppers who purchased items from end-caps used coupons for other items they purchased.

D
Sales of any item in a grocery store will increase if it is placed on an end-cap.



E
Shoppers who purchased items picked up from end-caps had lower grocery bills than those who did not.