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
Location of osmoreceptor is the: 
Select and explain. 
A. Wall of atria, B. Anterior hypothalamus, C. Juxta glomerular apparatus, D. Wall of veins
B: Anterior hypothalamus
Answer: B: Anterior hypothalamus 
Explanation: B i.e. Anterior hypothalamus