The comparison must be made between "individuals of one genetic composition" and "individuals of another genetic composition."
Therefore, (A) and (E) are wrong because "that" is singular; we're supposed to be comparing individual's' (plural).
(B) and (C) are wrong because "other"/"another" refers to another genetic composition; therefore, these are faulty comparisons, because there's no word to suggest "individuals" (we MUST compare individuals
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Therefore, (A) and (E) are wrong because "that" is singular; we're supposed to be comparing individual's' (plural).
(B) and (C) are wrong because "other"/"another" refers to another genetic composition; therefore, these are faulty comparisons, because there's no word to suggest "individuals" (we MUST compare individuals
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