This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pediatrics
[{'content': 'Most common site of brain metastasis is - \nSelect and explain. \nA. Cerebrum, B. Cerebellum, C. Medulla oblongata, D. Pons', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cerebrum o MC site of brain metastases (85%) - CEREBRUMo 2nd MC site of brain metastases- CEREBELLUMo Lung, breast, melanoma (skin cancer), colon and kidney cancers commonly spread to the brain.", 'role': 'assistant'}]