This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Bio-Chemistry), Subject name: Biochemistry
[{'content': 'Hydroxylation of Proline requires the following except: \nSelect and explain. \nA. Fe2+, B. O2, C. Ascorbic Acid, D. Succinate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. SuccinateVitamin C plays an important role as a co enzyme in the hydroxylation of Proline. The reaction is dependent on proline and requires vitamin C, alpha ketoglutarate, molecular O2 and Fe2+', 'role': 'assistant'}]