问题：白勇第六章37

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

1. and their families have a history of high blood pressure
2. whose families have a history of high blood pressure
3. and a history of high blood pressure runs in the family
4. whose families have a history high blood pressure running in them
5. with a history of high blood pressure running in their family

答案是B, C为啥不对？

a history of high blood pressure runs in the family 与 higher-than-average blood pressure 并列，共同作with 的宾语，修饰young people

解释说：changes in mesurement的核心词汇是measurements，所以重心转移了，原句是说strain的变化而不是measurements的变化；

        另外固定搭配：Varoations in sth