请教PREP一题，关于指代 - ChaseDream

Surveys have shown that in up to 40percent of elderly people living independently in affluent

countries, the consumption of one or moreessential nutrients is insufficient or they have deficient

(A) in up to 40 percent of elderly peopleliving independently in affluent countries, the consumption

of one or more essential nutrients isinsufficient or they have

(B) in up to 40 percent of elderly peoplewho live independently in affluent countries, they consume

essential nutrients are consumedinsufficiently or having

(D) up to 40 percent of elderly peopleliving independently in affluent countries who consume

insufficient amounts of one or moreessential nutrients or who have

(E) up to 40 percent of elderly peoplewho live independently in affluent countries consume

insufficient amounts of one or moreessential nutrients or have

答案E，说A THEY没指代，，但后面没划线部分不是有THEIR了吗，，，THEIR BLOOD只可能是PEOPLE吧不是指代PEOPLE吗

Surveys have shown that in up to 40percent of elderly people living independently in affluent

countries, the consumption of one or more essential nutrients is insufficient or they have deficient

(A) in up to 40 percent of elderly people living independently in affluent countries, the consumption

of one or more essential nutrients is insufficient or they have

(B) in up to 40 percent of elderly people who live independently in affluent countries, they consume

one or more essential nutrients insufficiently or have

essential nutrients are consumed insufficiently or having

(D) up to 40 percent of elderly people living independently in affluent countries who consume

insufficient amounts of one or more essential nutrients or who have

(E) up to 40 percent of elderly people who live independently in affluent countries consume

insufficient amounts of one or more essential nutrients or have

这个，they 在their前面，所以你得先判断they有没有指代， they逻辑上应该指代人，但是people与they不在一个层次上
这个，好像og里有说到，people在作介词的宾语，所以不能被they指代，og没有在手边，你自己翻翻啊