This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
Visceral leishmaniasis is caused by - 
Select and explain. 
A. L-braziliensis, B. L. tropica, C. L. donovani, D. L-orientalis
C: L. donovani
Answer: C: L. donovani 
Explanation: Ans. is 'c' i.e., L. donovani * Visceral leishmaniasis (Kala azar)* Cutaneous Leishmaniasis- L. donovania) Oriental soreb) Mucocutaneous leishmaniasis (Espundia)- L. tropica- L. brasiliensis