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: Dental
[{'content': 'Screening procedures help in reducing incidence of all of the following diseases except \nSelect and explain. \nA. oral cancer, B. breast cancer, C. lung cancer, D. cervix cancer', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]