This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and PNS, Subject name: ENT
[{'content': "Wood worker's associated sinus Ca is: (PGI Dec 2006) \nSelect and explain. \nA. Adeno Ca, B. Sq cell Ca, C. Anaplastic Ca, D. Melanoma", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: A (Adeno Ca) "Workers of furniture industry develop Adenocarcinoma of the Ethmoids and upper nasal cavityQ-while those engaged in Nickel refining get squamos cell and anaplastic carcinomaQ- Dhingra 5th/219', 'role': 'assistant'}]