In the Schaeffer-Fulton method, which is the primary stain, counterstain, purpose of heating, and decolorizing agent?
a. Primary stain, counterstain, purpose of heating, and decolorizing agent
b. Primary stain, counterstain, heating, and decolorizing agent
c. Schaeffer-Fulton method components
d. Stains and agents used in the Schaeffer-Fulton method