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': 'Technique of Cataract extraction  used in care of subluxated lens \nSelect and explain. \nA. Extracapsular Cataract extraction, B. Intracapsular Cataract extraction, C. Placoemusification, D. Small incision Cataract surgery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Though\xa0intracapsular Cataract extraction is obsolete, it is only indicated in subluxation of Lens.', 'role': 'assistant'}]