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
A diabetic patient presents with pus from eye. Colonies of isolated organisms are black with microscopic feature of non-septate hyphae and obtuse branching. Diagnosis is - 
Select and explain. 
A. Aspergillosis, B. Candidiasis, C. Mucormycosis, D. Histoplasmosis
C: Mucormycosis
Answer: C: Mucormycosis 
Explanation: None