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: Surgery
Carcinoma of the tongue - 
Select and explain. 
A. Occurs most commonly on the lateral border of the middle third of tongue, B. Metastasize readily to cervical lymph nodes, C. Is usually radiosensitive, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. is `d' i.e., All of the above