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
Stage IV a with thyroid cartilage invasion in larynegeal carcinoma is treated with 
Select and explain. 
A. Radiotherapy, B. Hemilaryngectomy, C. Total laryngectomy, D. Total laryngectomy with radiotherapy
D: Total laryngectomy with radiotherapy
Answer: D: Total laryngectomy with radiotherapy 
Explanation: None