This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Cryptococcus neoformans is identified by: \nSelect and explain. \nA. AFB Stain, B. Grams stain, C. India ink, D. Rose Bengal', 'role': 'user'}, {'content': 'Answer: C \nExplanation: India ink', 'role': 'assistant'}]