Sentence Correction (SC) | Re: Variability in individual physical traits both are determined through

(A) ((both)) ((are)) determined ((through)) genetic factors, environmental factors, and interaction between - incorrect placement of both, followed by wrong usage of are in place of "is" for variability and of "through" instead of by.

(B) ((are)) ((both)) determined by genetic factors, environmental factors, as well as interaction among - same as A.

(C) ((both)) is determined by genetic factors, environmental factors, and interaction between - same as A.

(D) is determined
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