This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cryptocococcus, Subject name: Microbiology
Stain which differentiates cryptococcus from other fungus - 
Select and explain. 
A. Gram Stain, B. Wright-Giemsa, C. India ink, D. Toluidine blue
C: India ink
Answer: C: India ink 
Explanation: Ans. is 'c' i.e., India ink o Unstained wet preperations of CSF mixed with drop of India ink or nigrosine demonstrate the capsule as a clear halo.o Methenamine silver or periodic acid-Schiff are used for staining a tissue sample.