This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
Which of the following lipid soluble vitamin acts as an antioxidant? 
Select and explain. 
A. Vitamin D, B. Vitamin E, C. Vitamin K, D. Vitamin C
B: Vitamin E
Answer: B: Vitamin E 
Explanation: Vitamin Functions Deficiency Disease E Antioxidant, especially in cell membranes roles in cell signaling Extremely rare--serious neurologic dysfunction Reference: Harper; 30th edition; Page no: 550