試題詳解

25. The author concludes the passage with the advice that _____.
(A) the benefit of daily multivitamin intake outweighs that of exercise and a balanced diet
(B) it's risky to take multivitamins without knowing their specific function
(C) the potential benefit of multivitamins can never be overestimated
(D) it's reasonable to take a rational dose of multivitamins daily