This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Best method to find out cases of TB in a community is:- 
Select and explain. 
A. Chest X-ray, B. Mantoux test, C. Sputum smear examination, D. Sputum culture sensitivity
C: Sputum smear examination
Answer: C: Sputum smear examination 
Explanation: Ans. is 'c' ie Sputum smear examination Park writes - "sputum smear examination by direct microscopy is now considered the method of choice. The reliability cheapness and ease of direct microscopic examination has made it number one case - finding method all over the world."