prep grammar

222.      (27161-!-item-!-188;#058&002248)         (GWD-1-Q34)

Although people in France consume fatty foods at a rate comparable to the United States, their death rates from heart disease are far lower in France.

A. people in France consume fatty foods at a rate comparable to the United States, their

B. people in France and the United States consume fatty foods at about the same rate, the

C. fatty foods are consumed by people in France at a comparable rate to the United States's, their

D. the rate of fatty foods consumed in France and the United States is about the same, the

E. the rate of people consuming fatty foods is about the same in France and the United States, the

为啥B？ D觉得比较对？the rate...the death rates....

thanks

238.      (26655-!-item-!-188;#058&002088)         (GWD-4-4)

A new hair-growth drug is being sold for three times the price, per milligram, as the drug's maker charges for another product with the same active ingredient.

A. as

B. than

C. that

D. of what

E. at which

为啥选的是C？做什么成分的？

对于第一题，我的理解是答案B更简洁，D中结构比较复杂！

第二题，price做定语从句charges的宾语！