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
Which of the following has the worst prognosis - 
Select and explain. 
A. Rolandic epilepsy, B. Versive epilepsy, C. Absence epilepsy, D. Infantile spasm
D: Infantile spasm
Answer: D: Infantile spasm 
Explanation: Ans. is 'd' i.e., Infantile spasm Prognosis for normal mental development is poor.