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
[{'content': 'Delhi boil refers to: \nSelect and explain. \nA. Solar Keratosis, B. Malignant pustule, C. L. tropica sore, D. Venereal ulcer', 'role': 'user'}, {'content': "Answer: C \nExplanation: Cutaneous leishmaniasis is the most common form of leishmaniasis affecting humans.\xa0\nIt is a skin infection caused by a single-celled parasite that is transmitted by the bite of a phlebotomine sandfly.\xa0\nThis disease is considered to be a zoonosis (an infectious disease that is naturally transmissible from animals to humans), with the exception of Leishmania\xa0 tropica.\xa0\nOther names are Oriental sore, Tropical sore, Chiclero ulcer, Chiclero's ulcer, Aleppo boil, Delhi Boil or Desert boil.\n\nRef :https://en.wikipedia.org/wiki/Cutaneous_leishmaniasis", 'role': 'assistant'}]