<prompt> Stain which differentiates cryptococcus from other fungus ?Gram StainWright-GiemsaIndia inkToluidine blue  <response>: Ans. is c i.e., India ink Unstained wet preperations of CSF mixed with drop of India ink or nigrosine demonstrate the capsule as a clear halo. Methenamine silver or periodic acid-Schiff are used for staining a tissue sample. 