GRE:Verbal Ability

[blacknomi]

winnow:chaff

(A)skim:cream
(B)pare:fruit
(C)filter:impurities


Since "winnow" means to get rid of something unwanted, (C) stands out. But I think both A and B are fine too. What do you think?



Thanks,
Me

[Josme Tulume]

C is correct. No doubt.

[blacknomi]

Thanks,

but my point is that I think (A) and (B) seem to be okay. It's just that they are not the best choice. Would you think so?