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
Fungi that posses a capsule is 
Select and explain. 
A. Candida, B. Aspergillus, C. Cryptococcus, D. Mucor
C: Cryptococcus
Answer: C: Cryptococcus 
Explanation: The capsule of Cryptococcus can be demonstrated by Indian ink or nigrosin stain. capsules are prominent in Indian ink preparation. There are 4 serological types of capsular polysaccharide, it can be demonstrated by precipitation test. All others do not have capsules. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition