This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Anterior horn of lateral ventricle is closed anteriorly by \nSelect and explain. \nA. Thalamus, B. Corpus callosum, C. Lamina terminalis, D. Septum pellucidum', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anterior horn of lateral ventricle is closed anteriorly by Genu and Rostrum of corpus callosum', 'role': 'assistant'}]