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
The following are true of kala-azar except - 
Select and explain. 
A. Persistent hypergammaglobulinemia, B. Pancytopenia, C. Cancrum oris can occur, D. Full treatment prevents post kala-azar dermal leishmaniasis
D: Full treatment prevents post kala-azar dermal leishmaniasis
Answer: D: Full treatment prevents post kala-azar dermal leishmaniasis 
Explanation: None