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: Medicine
[{'content': '65 yr old man presented with hemoptysis and grade III clubbing. The probable diagnosis of the patient is? \nSelect and explain. \nA. Non small cell lung Ca, B. Small cell cancer of lung, C. Tuberculosis, D. Sarcoidosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. Non small cell lung CaHemoptysis in 65 year old along with grade III clubbing suggests Non small cell carcinoma lung.Clubbing in lung cancer is characteristically associated with Non small cell carcinoma lung.', 'role': 'assistant'}]