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': 'Amino acid deficient in both Wheat and Maize ? \nSelect and explain. \nA. Lysine, B. Threonine, C. Tryptophan, D. Methionine', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lysine Wheat Next to rice, wheat is the most impoant cereal. The limiting amino acids in wheat proteins are lysine and threonine.", 'role': 'assistant'}]