This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Not true for carcinoma tongue 
Select and explain. 
A. Lateral border is involved, B. Adenocarcinoma is commonest, C. Cervical lymph node involvement, D. Tobacco chewing is a risk factor
B: Adenocarcinoma is commonest
Answer: B: Adenocarcinoma is commonest 
Explanation: Squamous carcinoma of tongue is the commonest not adenocarcinoma