<prompt> Which of the following stains is used to study fungal morphology in tissue sectionsPASVon- kossaAlizarin RedMassons Trichrome  <response>: A i.e PAS The periodic Acid Schiff PAS stain is a valuable method for the demonstration of fungal elements in tissues. Von Kossa stain and Alizarin Red are used to identify calcium, while Massons Trichrome is used to identify collagen, muscle and fibrin. 