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': 'In hippocampus EE \nSelect and explain. \nA. la wave, B. wave, C. Theta wave, D. Delta wave', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Theta Wave', 'role': 'assistant'}]