Which Statement Best Describes the Difference Between Supplemental and Food-Based

Which statement best describes the difference between supplemental and food-based vitamin E?

A) food-based alpha-tocopherol is about twice as active as the form most commonly used in supplements.
B) synthetic vitamin E,which is typically found in supplements,is chemically identical to vitamin E found in food.
C) The most common form vitamin E found in supplements is gamma-tocopherol.
D) Supplemental forms of vitamin E are 8 times as active as natural forms.