This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Structure & Function of Proteins), Subject name: Biochemistry
[{'content': 'Aromatic amino acid is - \nSelect and explain. \nA. Serine, B. Histidine, C. Leucine, D. Tryptophan', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Tryptophan o Aromatic amino acids - Phenylalanine, tryptophan, tyrosine.", 'role': 'assistant'}]