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: Pediatrics
[{'content': 'Most severe papilloedema is caused by- \nSelect and explain. \nA. Pituitary tumor, B. Frontal lobe tumor, C. Posterior cranial fossa tumor, D. Medulloblastoma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Posterior cranial fossa tumor Most severe papilledema due to increased ICT is seen in infratentorial posterior fossa midline tumors. o Medulloblastoma is a posterior fossa midline tumor.", 'role': 'assistant'}]