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
[{'content': 'An aromatic amino acid is \nSelect and explain. \nA. Lysine, B. Tyrosine, C. Taurine, D. Arginine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Aromatic amino acids: Phenylalanine, Tyrosine.\nReference: Vasudevan 7th\xa0 ed, pg 24', 'role': 'assistant'}]