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': 'Conversion of glycine to serine requires: \nSelect and explain. \nA. Folic acid, B. Thiamine, C. Vit. C., D. Pyridoxal phosphate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Glycine is conveed to serine by addition of methylene group from N5, N10 -methylenetetra hydrofolic acid and requires pyridoxal phosphate as coenzyme for serine hydroxymethyl tranaferase.', 'role': 'assistant'}]