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': 'Hunger centre of brain is: \nSelect and explain. \nA. Hypothalamus, B. Stria nigra, C. Frontal lobe, D. Temporal lobe', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]