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gmatblast
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Paul
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gmatblast
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My question is: how we can tell for sure that "it" refers to heart attack or to cardiac research center or to the drug.

I ofetn get confused with this. Is there any rule of thumb to identify what "it" refers to?

E is OA.
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gmatblast
My question is: how we can tell for sure that "it" refers to heart attack or to cardiac research center or to the drug.

I ofetn get confused with this. Is there any rule of thumb to identify what "it" refers to?

E is OA.



Exactly it can refer to that drug, research center or heart attack. For me E was sounding better than D but that it was questionable.

Don't you think that generically speaking "it" should refer to the just previous element in the series.
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https://www.gmatclub.com/phpbb/viewtopic.php?t=7557
This link includes some of my earlier explanations pertaining to pronoun reference



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