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': 'Commonest cause of convulsions in a child with fever is: \nSelect and explain. \nA. Febrile convulsions, B. Meningitis, C. Epilepsy, D. Hypothyroidism', 'role': 'user'}, {'content': "Answer: A \nExplanation: a. Febrile convulsions(Ref: Nelson's 20/e p 2831-2856, Ghai 8/e p 557-561)Febrile seizures are the most common cause of convulsions in a child with fever.", 'role': 'assistant'}]