请教GWDYN14 14题

14. GWD17-Q14:

Whereas lines of competition are clearly defined in the more established industries, in the Internet industry they are blurred and indistinct, as companies that compete one day may be partners the next.

A.      Whereas lines of competition are clearly defined in the more established industries, in the Internet industry they are blurred and indistinct, as companies that compete

B.       Although the lines of competition are clearly defined in industries that are more established, they are blurred and indistinct in the Internet industry, as competing companies

C.      The lines of competition are clearly defined in the more established industries, unlike the Internet where they are blurred and indistinct, as companies that compete

D.      Unlike more established industries, where the lines of competition are clearly defined, they are burred and indistinct in the Internet industry, as companies that compete

E.       Unlike more established industries, with clearly defined lines of competition, those of the Internet industry are blurred and indistinct, as competing companies

为啥不选A呢 ONE DAY 和THE NEXT不协调啊 请同学指教!!

A,C they指代歧义，也能指代前面的industries

D：they指代错误

E：中间的插入语改变了句子结构，those of表达错误

A,C,D,E都有more的修饰歧义问题

倾向于B，虽然也有可能存在they的指代问题，但消除了more的修饰歧义