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: Pathology
Thrush: 
Select and explain. 
A. Occurs only in elderly, B. Is caused by a gram -ve bacteria, C. Is seen clinically as a proliferative lesion, D. Responds to nystatin
D: Responds to nystatin
Answer: D: Responds to nystatin 
Explanation: None