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': 'Wavelength of Femtosecond laser is \nSelect and explain. \nA. 514, B. 1064, C. 1053, D. 714', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Femtosecond - 1053 nm\nnd - Yag - 1064 nm.', 'role': 'assistant'}]