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': 'In children with cerebral oedema which one of the following corticosteroids will be effective – \nSelect and explain. \nA. Hydrocortisone, B. Prednisolone, C. Dexamethasone, D. Betamethasone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dexamethasone is preferred.', 'role': 'assistant'}]