please tell me why A is not correct?

GWD1-Q2:

By merging its two publishing divisions, the company will increase their share of the country’s $21 billion book market from 6 percent to 10 percent, a market ranging from obscure textbooks to mass-market paperbacks.

A.      their share of the country’s $21 billion book market from 6 percent to 10 percent, a market ranging

B.       from 6 percent to 10 percent its share of the $21 billion book market in the country, which ranges

C.      to 10 percent from 6 percent in their share of the $21 billion book market in the country, a market ranging

D.      in its share, from 6 percent to 10 percent, of the $21 billion book market in the country, which ranges

E.       to 10 percent from 6 percent its share of the country’s $21 billion book market, which ranges

答案是E吧，

后面的which修饰market,比B好

their 指代 company不正确

选E which与其指代的MARKET 联系紧密，好！

support E, but suggested answer is B according to GWD