Sentence Correction

Hi,

By merging its two publishing division, 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

can you please clarify the reference of "which" in choice B. I think it clearly refers to the market since the essential modifier "in the country" is needed to specify which market the sentence is referring to. Am I right? The only reason to prefer choice E over B is choice E is more concise. Also, the correct idiom or the preferred idiom to use is "from....to" rather than "to....from"?

Thanks