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: Social & Preventive Medicine
[{'content': 'Cereals are rich in which amino acid ? \nSelect and explain. \nA. Lysine, B. Threonine, C. Tiyptophan, D. Methionine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., Methionine "Pulses have high lysine content and are deficient in methionine; on the other hand cereals have an abundance of methionine"', 'role': 'assistant'}]