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: Anatomy
[{'content': 'Bulb of posterior horn of lateral ventricle is formed by \nSelect and explain. \nA. Collateral sulcus, B. calcarine sulcus, C. Forceps major, D. Stria terminalis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Bulb of posterior horn is present on medial wall of posterior horn of lateral ventricle and is formed by fibers of forceps major.', 'role': 'assistant'}]