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
Amino acid rich in rice is: 
Select and explain. 
A. Lysine, B. Methionine, C. Both, D. None of the above
A: Lysine
Answer: A: Lysine 
Explanation: Lysine