求问OG10 的SC题，另问“多，少”比较具体应该用哪个词？

六根清净

比如说populaiton， number等等这些词用high还是用large来修饰？
less是只能修饰不可数名词吗？为什么有less cost
这题选C
Even though the direct costs of malpractice disputes amounts to a sum lower than one percent of the $541 billion the nation spent on health care last year, doctors say fear of lawsuits plays a major role in health-care inflation.

• amounts to a sum lower
  
• amounts to less
  
• amounted to less
  
• amounted to lower
  
• amounted to a lower sum
  
• 这题选C，costs这里是可数名词还是不可数名词啊？它虽然有S但是后面的位于用的是amounts，而且后面有用less，less不是只能修饰不可数名词的吗？
  

六根清净

顶顶顶顶顶顶呱呱！！！！！！！！！！！

VeraSui

populaiton， number等等这些词用large。

搜的CD上XDJM的回答：
The correct choice must feature a verb that agrees with the plural noun costs and refers to an action completed last year (past tense). The verb amounts in A and B fulfills neither condition, and amounts to a sum in A is redundant. The same redundancy occurs in E, and the construction a lower sum than is awkward and imprecise in the context of the sentence. In D, the adjective lower is erroneously used in place of the noun less as object of the preposition to. Choice C is best