This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': 'Hippocampal formation includes all Except \nSelect and explain. \nA. Dentate gyrus, B. Sibiculum, C. Amygdaloid, D. Entorhinal coex', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The hippocampal formation in the medial temporal lobe of the brain includes the dentate gyrus, the hippocampus proper and the subiculum', 'role': 'assistant'}]