[求助]请牛人帮忙分析下

An inventory equal to 90 days sales is {as much as even} the strongest business 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 as
(E)even so much that

关于比较的题目，答案是A。as..as 比较的对象要一致啊，这句话选a的话是什么跟什么进行比较呢？An inventory 与the strongest business carry比较？

even的位置怎么确定?

even的位置似乎最好不要变，似乎说位置变了会引起意思的不同，还是要看even修饰什么吧，不太清楚，谁知道呀，帮忙解答下。另inventory与carry比较？是什么意思呀，还是搞不太懂，能帮忙分析下句子结构么，大谢特谢啊！

carry是名词.

The carry of an asset is the return obtained from holding it (if positive), or the cost of holding it (if negative) (see also Cost of carry).