This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'During the formation of hydroxyproline and hydroxylsine, the essential factors required is/are: \nSelect and explain. \nA. Pyridoxal phosphate, B. Ascorbic acid, C. Thiamine pyrophosphate, D. Methylcobalamine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Ascorbic acid', 'role': 'assistant'}]