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
Which of the following is only yeast - 
Select and explain. 
A. Candida, B. Mucor, C. Rhizopus, D. Cryptococcus
D: Cryptococcus
Answer: D: Cryptococcus 
Explanation: Based on the morphological appearance, there are four main groups of fungi: Yeast: They grow as round to oval cells that reproduce by budding, e.g. Cryptococcus neoformans and Saccharomyces. Yeast like : They exist as yeasts with pseudohyphae, e.g. Candida Moulds: They grow as long branching filaments of 2-10 mm wide called hyphae. Examples include - Dermatophytes, Aspergillus, Penicillium, Rhizopus and Mucor, etc. Dimorphic fungi: They exist as moulds (hyphal form) in the environment at ambient temperature (25degC) and as yeasts in human tissues at body temperature (37degC). Examples include: Histoplasma capsulatum, Blastomyces dermatitidis, Coccidioides, Paracoccidioides Penicillium marneffei and Sporothrix schenckii. Note- Candida albicans is not a dimorphic fungi.