This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mycology, Subject name: Microbiology
[{'content': 'Stain which differentiates cryptococcus from other fungus \nSelect and explain. \nA. Gram stain, B. Acid fast stain, C. India ink, D. Gomori methamine silver stain', 'role': 'user'}, {'content': 'Answer: C \nExplanation: India ink or Nigrosine - demonstrate the capsule of Cryptococcus as a clear halo Gram stain - used to diff. b/w gram positive and gram negative Acid fast stain - used to stain Tuberculous bacteria, acid fastness is due to mycolic acid . Gomori methamine silver stain - used to stain Pneumocystis jiroveci', 'role': 'assistant'}]