This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamins and Minerals, Subject name: Biochemistry
Vitamin E prevents rancidity by virtue of its---------property: 
Select and explain. 
A. Antioxidant, B. Oxidant, C. Sulfuration, D. Hydrogenation
A: Antioxidant
Answer: A: Antioxidant 
Explanation: A Harper, 26th ed, p. 486 & 25th ed. p. 647