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Which of these correctly reflects why each pea plant needs exactly two sets of genes (not one, not three)? contributing one full set

Question
Which of these correctly reflects why each pea plant needs exactly two sets of genes (not one, not three)? contributing one full set
Because both parents contribute equally, and this equal contribution requires each parent
Because plants always have three parents
Because DNA can only exist in odd-numbered sets
There is no biological reason; it is arbitrary
Answer
Because both parents contribute equally, and this equal contribution requires each parent
Detailed Explanation
Since both parents contribute genetic material roughly equally, and each contributes one gene set, the offspring ends up with two sets total, one per parent.
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