This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health programmes in India, Subject name: Social & Preventive Medicine
[{'content': 'According to CDC recommendations, HIV screening of pregnant women is \nSelect and explain. \nA. Opt in testing, B. Opt out testing, C. Compulsory, D. Symptomatic', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Opt-out testing means performing an HIV test after notifying the patient that the test is normally performed, but that the patient may elect to decline or defer testing; consent is then assumed unless the patient declines to test. WHO and CDC recommend opt-out testing policies in healthcare settings. Reference: HIV testing guidelines,CDC Atlanta.', 'role': 'assistant'}]