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
Which of the following stain is used to detect the capsule of Cryptococcus neoformans in a CSF sample? 
Select and explain. 
A. Grams stain, B. Zeihl neelson stain, C. India ink preparation, D. Methanamine-Silver stain
C: India ink preparation
Answer: C: India ink preparation 
Explanation: Capsule of cryptococcus neoformans in a CSF sample is best seen by India ink preparation. Gomori methanamine stain, PAS stain and Alcian blue stain are also used in identifying this organism. Ref: Handbook for Zoonotic Diseases of Companion Animals By Glenda Dvora, 1st Edition, Pages 108-9