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': 'Structure of brain involved in emotion : \nSelect and explain. \nA. Neocoex, B. Limbic system, C. Thalamus, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Limbic system', 'role': 'assistant'}]