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: Unknown
[{'content': 'Which of the following occupy field H2 of Forel? \nSelect and explain. \nA. Ansa lenticularis, B. Fasciculus thalamicus, C. Fasciculus subthalamicus, D. Fasciculus lenticularis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Fields of Forel\n\nIt is an area in the deep part of the diencephalon.\nIt is below the thalamus.\nContains three defined white matter areas of the subthalamus.', 'role': 'assistant'}]