By merging its two publishing divisions, the company will increase to 10 percent from 6 percent its share of the $21 billion book market in the country, which ranges from obscure textbooks to mass-market paperbacks.
to 10 percent from 6 percent its share of the $21 billion book market in the country, which ranges
to 10 percent from 6 percent its share of the country's $21 billion book market, which ranges
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略
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这个A的错误是因为which的前行词 指market吗?