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': 'Enzymes for urea synthesis are present in: \nSelect and explain. \nA. Cytoplasm, B. Mitochondrial matrix, C. Both of the above, D. none of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hepatic urea synthesis takes place in pa in the mitochondrial matrix and in pa in the cytosol. Ref: Harper 28th edition, chapter 28.', 'role': 'assistant'}]