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': 'Polar amino acids are all except ? \nSelect and explain. \nA. Glutamic acid, B. Histidine, C. Glutamine, D. Methionine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Methionine", 'role': 'assistant'}]