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: Unknown
[{'content': 'Which of the following is the most common cataract in the newborn - \nSelect and explain. \nA. Zonular Cataract, B. Morgagnian Cataract, C. Ant. polar Cataract, D. Post, polar Cataract', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer: A The commonest cataract in childhood is Blue Dot cataract which presents without visual obstruction. And the commonest congenital cataract which presents with a visual defect is zonular cataract.', 'role': 'assistant'}]