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: Microbiology
[{'content': 'All of the following tumours are associated with organisms except: \nSelect and explain. \nA. Gastric carcinoma, B. Hepatocellular carcinoma, C. Nasopharyngeal carcinoma, D. Non-small cell lung carcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Non-small cell lung carcinoma', 'role': 'assistant'}]