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 enzymes is common to the synthesis of cholesterol and ketone bodies: \nSelect and explain. \nA. HMG -Co-A Reductase, B. HMG-Co-A Lyase, C. HMG-Co-A Synthase, D. Thiokinase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. HMG-Co-A Synthase', 'role': 'assistant'}]