Which does NOT handle free radicals inside the lens: (A) Vitamin A, (B) Vitamin C, (C) Vitamin E, (D) Catalase
Answer is A. Preventive antioxidant mechanisms of the lens against free radicals are:

Enzymatic defence mechanism - reduced glutathione, glutathione peroxide, superoxide dismutase and catalase
Non-enzymatic defence mechanism - vitamin C, vitamin E and carotenoids