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': 'A ten year old child with aggressive behavior and poor concentration is brought with presenting complaints of joint pain and reduced urinary output. Mother gives history of self mutilitative behavior stating that he tends to mutilate his fingers. Which of the following enzymes is likely to be deficient in this child \nSelect and explain. \nA. HGP, B. Adenosine Deaminase, C. Galactokinase, D. Acid Maltase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: HGP', 'role': 'assistant'}]