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': 'Which of the following has the worst prognosis - \nSelect and explain. \nA. Rolandic epilepsy, B. Versive epilepsy, C. Absence epilepsy, D. Infantile spasm', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Infantile spasm Prognosis for normal mental development is poor.", 'role': 'assistant'}]