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
[{'content': 'Vitamin E prevents rancidity by virtue of its---------property: \nSelect and explain. \nA. Antioxidant, B. Oxidant, C. Sulfuration, D. Hydrogenation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A Harper, 26th ed, p. 486 & 25th ed. p. 647', 'role': 'assistant'}]