og 105 未讨论内容

An inventory equal to 90 days sales is as much as even the strongest businesses carry, and then only as a way to anticipate higher prices or ensure against shortages.
    

(A)
                as much as even
    

(B)
                so much as even
    

(C)
                even so much as
    

(D)
                even as much that

(E)
                even so much that
    

选项e中解释说"so much that"    is an incorrect idiom,如果理解成so...(much)  that 句型呢,换句话说,如果e项改为so much that even 是不是成立呢?

另外,谁能帮忙还原一下not so much as a whisper was heard from the crowd?