新手求助一题

According to the Chicago Business Department, if you fail to advertise the highest price in a range of prices for a service or product as prominently as that of the lowest, it
                violates the Chicago Consumer Protection Law.

(A) if you fail to advertise the highest price in a range of prices for a service or product as prominently as that of the lowest, it
(B) if one fails to advertise the highest price in a range of prices for a service or product as prominently as the lowest price, it
(C) failure to advertise the highest price in a range of prices for a service or product as prominently as the lowest
(D) failure to advertise as prominently the highest price in a range of prices for a service or product as the lowest
(E) failing to advertise as prominently the highest price in a range of prices for a service or products as that of the lowest

这题我整体就不太明白，做的时候没有什么头绪，

答案是C 我选的D

请大家帮忙分析一下

我做的时候的想法，你看一下，是不是这样：

AB排除：if you ，it  错，如果要用if**应该是IF ONE ，然后后面应该用人称代词，而不应是IT。

D，F：as prominently as the lowest在这不应该被分开

(C) failure to advertise the highest price in a range of prices for a service or product as prominently as the lowest

failure to do sth是名词短语作主语，
            最后的as prominently as the lowest作副词修饰advertise.
总的看这句话就是，整个划线部分做谓语动词violates的主语。

D，F：as prominently as the lowest在这不应该被分开，为什么呢？(呵呵，不要嫌我罗唆哈)

这句的意思也不太懂，能给我解释一下吗？

可以先把as...as的结构去掉看这个句子。

应该是advertise sth. prominently 而不会是advertise prominently sth.吧？

我是这么想的，欢迎指正...