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
Limiting amino acid in legumes ? 
Select and explain. 
A. Lysine, B. Methionine, C. Alanine, D. Tryptophan
B: Methionine
Answer: B: Methionine 
Explanation: Ans. is b, i.e., MethionineFood itemlimiting amino acidLegumesMethionine (also leucine & threonine)CerealsThreonine (also lysine)PulsesMethionine (also cysteine)MaizeTryptophan (also lysine)