This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Screening, Subject name: Social & Preventive Medicine
[{'content': 'Mammography has 90% sensitivity and 98% specificity for breast carcinova. What is the probability that woman with breast carcinoma remains un diagnosed for 2 consecutive years? \nSelect and explain. \nA. 1\\/10, B. 2\\/10, C. 1\\/100, D. 2\\/100', 'role': 'user'}, {'content': 'Answer: B \nExplanation: False positive = 1- sensitivity = 1- 0.9 = 0.1 For 2 consecutive years = 2x0.1=0.2', 'role': 'assistant'}]