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
[{'content': 'Location of osmoreceptor is the: \nSelect and explain. \nA. Wall of atria, B. Anterior hypothalamus, C. Juxta glomerular apparatus, D. Wall of veins', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Anterior hypothalamus', 'role': 'assistant'}]