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 drug company is developing a new pregnancy-test kit for use on an outpatient basis. The company used the pregnancy test on 100 women who are known to be pregnant. Out of 100 women, 99 showed positive test. Upon using the same test on 100 non-pregnant women, 90 showed negative result. What is the sensitivity of the test - \nSelect and explain. \nA. 90%, B. 99%, C. Average of 90 & 99., D. Cannot be calculated from the given data', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 99%", 'role': 'assistant'}]