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': 'Best stain for cryptococcal capsule - \nSelect and explain. \nA. Gram stain, B. India ink preparation, C. Giemsa stain, D. Methanamine-silver stain', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., India Ink preparation * C. neoformans is best demonstrated in CSF by direct microscopy. The capsule is seen as a clear halo around the yeast cells in unstained wet preparations of CSF mixed with a drop of India ink or nigrosine. Methenamine silver stain would be the best choice for a tissue sample.", 'role': 'assistant'}]