This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Neck), Subject name: Surgery
In which of the following head and neck cancers, is lymph node metastasis least common: 
Select and explain. 
A. Tongue, B. Buccal mucosa, C. Hard palate, D. Lower alveolus
C: Hard palate
Answer: C: Hard palate 
Explanation: Ans. is 'c' i.e. Hard palate Incidence of cervical metastasis in head and neck cancers (in decreasing order)Tongue (most common)Floor of mouthLower alveolusBuccal mucosaUpper alveolusHard palate