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: Physiology
Insulin increases the activity of 
Select and explain. 
A. HMG-CoA reductase, B. HMG-CoA lyase, C. HMG-CoA synthase, D. Thiolase
A: HMG-CoA reductase
Answer: A: HMG-CoA reductase 
Explanation: None