急切求助GWD-31-Q30

aaronjoqd

The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.

A: The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.

B: It is estimated that by the end of the decade the cost to the United States petroleum industry of meeting environmental regulations will be ten percent of the price per barrel of refined petroleum.

C: By the end of the decade, the United States petroleum industry’
s cost of meeting environmental regulations is projected at ten percent of the price per barrel of refined petroleum.

D: To meet environmental regulations, the cost to the United States petroleum industry is estimated at ten percent of the price per barrel of refined petroleum by the end of the decade.

E: The United States petroleum industry’s cost by the end of the decade to meet environmental regulations is estimated at ten percent of the price per barrel of refined petroleum.
看了以前的讨论，主要解释是industry’ cost错 和bythe end of the decade 的修饰错误
前一个错误理解了，可是后一个错误NN们能不能详细解答一下，还有D为什么错啊，cost 是不是不能作 to meet the regulations的逻辑主语啊，为什么不可以啊

aaronjoqd

答案给的是B