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
Most common organism causing fungal infection of oral cavity ? 
Select and explain. 
A. Candida, B. Blastomycosis, C. Aspergillosis, D. Cryptococcus
A: Candida
Answer: A: Candida 
Explanation: Ans. is 'a' i.e., Candida The most prevalent fungal infections in oral cavity are those caused by Candida species, especially C. albicans. Candidiasis (Moniliasis) Candidiasis is the most common systemic mycosis. Candidiasis is an oppounistic endogenous infection and is the most common fungal infection in neutropenic patients. Candida is the most common fungal infection in immunocompetent persons as well.