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': "Which of the following is not included under Garrod's tetrad \nSelect and explain. \nA. Albinism, B. Pentosuria, C. Phenylketonuria, D. Cystinuria", 'role': 'user'}, {'content': "Answer: C \nExplanation: Garrod's tetrad includes Albinism, Pentosuria, Alkaptonuria, Cystinuria.", 'role': 'assistant'}]