5 7. Supermarket managers have all kinds of tricks to encourage people to spend
money. Their aim is to slow people down as they move through the supermarket. To
do this, they place colorful displays in surprising places to catch the customers'
attention. They also make the aisles (walkways) near the cash registers narrower, so
customers will not be able to move quickly with their shopping carts. Sometimes the
floor is even slightly uphill for people moving toward the cash registers. The idea
behind these tricks is simple: If you make customers go slowly, they will
a. get angry and go home.
b. buy a few extra items.
c. buy healthier food.
d. decide not to buy anything more.