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': 'Creatine is made up of all, except ? \nSelect and explain. \nA. Glycine, B. Alanine, C. Methionine, D. Arginine', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Alanine", 'role': 'assistant'}]