Global Differences in Product Utilization Level Are Evident in Which

Global differences in product utilization level are evident in which of the following examples?

A) Rich Chinese families often have two kitchens in their houses, one "to be shown" to friends and guests and one "for cooking."
B) Vicks Vapor Rub is used to fight mosquitoes in some markets, to relieve coughs in others.
C) Western marketers have difficulty selling their refrigerators in Japan due to noisy motors and thin walls.
D) Consumers in Mediterranean markets use dryers only occasionally for fear that laundry can get ruined.