Sentence Correction (SC) | Re: Most of the purported health benefits of tea comes from

The 2/3 split here is right at the start of the underlined portion: do we need "comes" or "come"? The subject is "most of the purported health benefits," so we need the plural form "come".
We can eliminate E for using the pronoun "they," which could refer to antioxidants, compounds, or health benefits.

D uses parallel construction correctly:
"compounds that (are also found...) and that (inhibit the formation...)"
C does not use parallel
...

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