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: Radiology
[{'content': 'Prophylactic intracranial irradiations are given in – \nSelect and explain. \nA. Small cell Ca of lung, B. Testicular Ca, C. Ca breast, D. Ca stomach', 'role': 'user'}, {'content': "Answer: A \nExplanation: Prophylactic craniospinal irradiation is given in:- medulloblastoma, SCC lung, Glioblastoma, Germinoma, ALL, Non-Hodgkin's lymphoma (NHL), Leptomeningeal rhabdomyosarcoma", 'role': 'assistant'}]