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': 'All are true except: \nSelect and explain. \nA. The infantile nucleus is completely formed by one year of age, B. The embryonic nucleus is situated between the two Y sutures, C. Congenital blue dot cataracts are associated with development of senile cataract at an early stage, D. Zonular cataracts typically affect the outer pa of the fetal or the inner pa of the adult nucleus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. The infantile nucleus is completely formed by one year of age', 'role': 'assistant'}]