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
Nuclei controlling circadian rhythm: 
Select and explain. 
A. Supra chiasmatic nuclei, B. Arcuate, C. Paraventricular, D. Vestibulocerebellar
A: Supra chiasmatic nuclei
Answer: A: Supra chiasmatic nuclei 
Explanation: None