According to the author, people in which country are expected to live longer

A．the fight smell made people think a product was better
B．people preferred the smell of lemon to coconut
C．certain smells could make people dislike a shop
D．customers rated the goods on sale as more inviting

A．may lead customers to pay more for a product
B．can increase sales of a specific product
C．makes people buy more foreign wine
D．causes customers to buy more in the shop