Which of the following is an assumption the argument relies on? A. The use of antioxidants does not vary across different age groups. B. The less often one takes multivitamins, the more one's longevity increases. C. The antioxidants found in vitamins do not differ from antioxidants found in other sources, such as food. D. Antioxidants can confer health benefits that do not relate to longevity. E. Antioxidants destroy free radicals, which are toxic to the body.