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1.        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 famil

我选的A，因为我觉得WHOSE 应该尽量贴近人吧，这样会有问题吗？

你说的没错,但是当每个选项都不是最好的时候就要看错误的优先级别,GMAT平行优于你说的whose...

选项A,and前是一个名词短语,and后是一个句子,违反了平行,因此不如B好