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
Systemic fungal infections can be caused by the followinga) Cryptococcus neoformansb) Histoplasma capsulatumc) Paracoccidioides brasiliensisd) Naegleria fowlerie) Isospora belli 
Select and explain. 
A. ab, B. bc, C. acd, D. abc
D: abc
Answer: D: abc 
Explanation: None