885-16-9求助

Studies show that young people with higher-than-average blood pressure and their families have a history of high blood pressure are more likely than others to develop a severe form of the condition.

(A) and their families have a history of high blood pressure

(B) whose families have a history of high blood pressure

(C) and a history of high blood pressure runs in the family

(D) whose families have a history of high blood pressure running in them（B）

(E) with a history of high blood pressure running in their family

答案B,为什么定语从句先行词可以不紧跟被修饰词young people??到底还有没有公理?

E的with有什么问题?是their修饰问题吗?但从common sense应该不存在歧义,

请指教!

B, 没办法, 这种形式是可以的, 记住吧.

E. 修饰歧义