This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral cavity, Subject name: Surgery
The commando operation is:- 
Select and explain. 
A. Abdominoperineal resection of the rectum for carcinoma, B. Disaiculation of the hip for gas gangrene of the leg, C. Extended radical mastectomy, D. Excision of carcinoma of the jaw and lymph nodes
D: Excision of carcinoma of the jaw and lymph nodes
Answer: D: Excision of carcinoma of the jaw and lymph nodes 
Explanation: Commando's operation: Total glossectomy hemimandibulectomy + Removal of floor of mouth + Radical lymph node dissection Indicated when carcinoma is fixed to mandible with infiltration of floor of mouth.