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
Fungus capable of forming fungal ball is: 
Select and explain. 
A. Penicillium, B. Aspergillus, C. Mucor, D. Rhizopus
B: Aspergillus
Answer: B: Aspergillus 
Explanation: None