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': 'Sensitivity; True is: \nSelect and explain. \nA. Most important parameter for screening, B. Identifies those who have the disease, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]