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
What are the minimum number bacilli for Sputum positive Tuberculosis? 
Select and explain. 
A. 10, B. 102, C. 103, D. 104
D: 104
Answer: D: 104 
Explanation: Answer: D. 104. (Ref Park's Textbook of PSM 22nd/Pg.l71)Sputum smear microscopy for tubercle bacilli is positive when there are at least 10,000 organisms present per ml of sputum.For slide reporting :No. of BacilliResult reportedNo AFB/100 oil immersion fields01-9 AFB/100 oil immersion fieldsScanty ( or Number AFB seen)10-99 AFB/100 oil immersion fields+ 0+)1-10 AFB/oil immersion fields++ (2+)>10 AFB/oil immersion fields+++ (3+)