This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
Vitamin C is present in largest amount in body in 
Select and explain. 
A. Eye, B. Kidney, C. Testis, D. Adrenal coex
D: Adrenal coex
Answer: D: Adrenal coex 
Explanation: Reference: Harpers illustrated biochemistry 30th edition