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
[{'content': 'Visceral leishmaniasis is caused by - \nSelect and explain. \nA. L-braziliensis, B. L. tropica, C. L. donovani, D. L-orientalis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., L. donovani * Visceral leishmaniasis (Kala azar)* Cutaneous Leishmaniasis- L. donovania) Oriental soreb) Mucocutaneous leishmaniasis (Espundia)- L. tropica- L. brasiliensis", 'role': 'assistant'}]