[求助] prep-152 (还没有该题的讨论贴)

152.
        Officials at the United States Mint believe that the Sacagawea dollar coin will be used more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than four quarters, which weigh 5.67 grams each.

A.      more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than

B.      more as a substitute for four quarters than the dollar bill because it weighs only 8.1 grams, far less than

C.      as a substitute for four quarters more than for the dollar bill because it weighs only 8.1 grams, far less than

D.     as a substitute for four quarters more than the dollar bill because its weight of only 8.1 grams is far lighter than it is for

E.      as a substitute more for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than it is for

A: more… rather than 搭配错；its weitht和后面four quarters比较对象不对等

B: more as… than the dollar，the dollar和前面比较对象有歧义

C: correct

D: 比较对象不对等

E: more… rather than 搭配错；

请教：不太理解more than在这里的意思，是指possibilities greater than吗？请nn指导more than的这种用法，谢谢