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: Social & Preventive Medicine
[{'content': 'A screening test becomes more sensitive when, \nSelect and explain. \nA. Less False positive, B. Less False Negative, C. More False Positive, D. More False Negative', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]