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': 'Rice protein is deficient in ? \nSelect and explain. \nA. Methionine, B. Cysteine, C. Lysine, D. Tryptophon', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is c. i.e., Lysine "A rice diet is deficient in lysine and theronine"', 'role': 'assistant'}]