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': 'The laser used in LASIK is \nSelect and explain. \nA. Argon diode laser, B. Nd:YAG Laser, C. Excimer laser, D. Double frequency Nd:YAG Laser', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. Excimer laserKrypton red Excimer ( argon fluoride)- Photorefractive keratectomy (PRK), phototherapeutic keratectomy (PTK), LASIK, LASEK', 'role': 'assistant'}]