People who eat a balanced diet should be healthier than only eat biscuits. A. all whichB.

People who eat a balanced diet should be healthier than only eat biscuits.
A. all which
B. those who
C. that who
D. those what

A. all which(答案→)B. those whoC. that whoD. those what解析：句意:饮食均衡的人应该要比那些只吃饼干的人要更健康。比较级中代指比较的对象单数用that,复数用those。those 后跟有一个定义从句，引导词应是who，what 不能引导定语从句，故选B。

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