15. Which of the following is mismatched with its function?
(A) most B vitamins - coenzymes
(B) Vitamin E -antioxidant
(C) Vitamin K - blood clotting
(D) Iron - component of thyroid hormones
(E) Phosphorous --bone formation, nucleotide synthesis

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統計： A(0), B(0), C(0), D(1), E(0) #2789157