This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Histo Pathology, Subject name: Pathology
Which of the following is a negative stain: 
Select and explain. 
A. Negrosin, B. Fonatana, C. ZN stain, D. Albert stain
A: Negrosin
Answer: A: Negrosin 
Explanation: Ans. (a) Negrosin(Ref: Bancroft's histological techniques, 7th edition)Examples of negative stain are:*Negrosin: Stains bacteria, Cryptococcus, test for viability (sperms)*India Ink: Stains Cryptococcus