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: ENT
Treatment of Ca larynx in stage. T1MoNo is - 
Select and explain. 
A. Radiotherapy, B. Surgery total laryngectomy, C. Laser therapy, D. Microlaryngoscopic surgery
A: Radiotherapy
Answer: A: Radiotherapy 
Explanation: None