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: Radiology
[{'content': "`Cavitating lesions' in the lung are found in: \nSelect and explain. \nA. Squamous cell carcinoma, B. Adenocarcinoma, C. Small cell carcinoma, D. Large cell carcinoma", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Squamous cell carcinoma', 'role': 'assistant'}]