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: Ophthalmology
[{'content': 'IOL preferred in children in: \nSelect and explain. \nA. Foldable acrylic lens, B. Foldable silicon lens, C. Three piece PMMA lens, D. Single piece PMMA lens', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Foldable acrylic lens', 'role': 'assistant'}]