单选题
People in Beijing wear a lot of clothing during winter to defend off the cold. In the United States, however, people wear less partly because the car is the primary mode of transportation. Cars take them straight to their workplaces,【C1】______ are heated well. The American diet is full of calories, so their bodies can afford to burn heat more quickly. Fewer layers of clothing give people the【C2】______ to stay fashionable. Lots of Yale girls wear skirts even when it's 10 degrees Centigrade outside. Some of them at least wear boots, tights, and legwarmers. Some, however, really just go for the look【C3】______ the risk of health. These girls have nothing to prevent their legs against the wind, and no socks to protect their feet. A mini skirt and a pair of stilettos【C4】______ all that they wear. Typically, the ones【C5】______ fashion are skinny with little body fat. Just by the nature of their bodies, they are already at a disadvantage【C6】______ with normal people in cold weather. I have always wondered, whenever I pass these girls, how they manage to refrain from shivering and just smile like spring【C7】______ And then there are the guys. The girls can be said to sacrifice health for beauty. But why do guys wear so little? It is not like, 【C8】______ they shed some layers, they suddenly become better-looking. They are not exactly being fashionable when they only wear sporty shorts and shower slippers in the midst of winter. It's not cute. Of course, people have the freedom to look【C9】______ way they want. I am just surprised that, 【C10】______ the vast difference between winter and summer temperatures in Connecticut, they can still look like they are partying on the beach in the middle of February.