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
The temperature of body is controlled by: 
Select and explain. 
A. Medulla, B. Precentral gyrus, C. Diencephalon, D. Hypothalamus
D: Hypothalamus
Answer: D: Hypothalamus 
Explanation: None