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
Adenocarcinoma of ethmoid sinus occurs commonly in: 
Select and explain. 
A. Fire workers, B. Chimney workers, C. Watch makers, D. Wood workers
D: Wood workers
Answer: D: Wood workers 
Explanation: Workers of furniture industry develop adenocarcinoma of the Ethmoids and upper nasal cavity. While those engaged in Nickel refining get squamous cell and Anaplastic carcinoma.