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': 'Crystalline lens absorbs light rays shoer than: \nSelect and explain. \nA. 295 rim, B. 350 nm, C. 390 nm, D. 490 nm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. 350 nm', 'role': 'assistant'}]