请教sec20-07

1.        As rare as something becomes, be it a baseball card or a musical recording or a postage stamp, the more avidly it is sought by collectors.

(A) As rare as something becomes, be it

(B) As rare as something becomes, whether it is

(C) As something becomes rarer and rarer, like

(D) The rarer something becomes, like（E）

(E) The rarer something becomes, whether it is

答案是E    为什么D不对呢?

来个高手回答一下啦   马上要考试啦！！！！

十万火急！！！

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原来如此~~~