This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology Pa 1 (Protozoology), Subject name: Microbiology
Sleeping sickness is transmitted by - 
Select and explain. 
A. Tsetse fly, B. House fly, C. Sand fly, D. Simulium fly
A: Tsetse fly
Answer: A: Tsetse fly 
Explanation: Sleeping Sickness is caused by T. brucei. :- transmitted by Tsetse fly Leishmaniasis :- by Sand fly cholera and dysentry :- house fly Simuliumis a genus of blackflies, which may transmit diseases such as onchocerciasis (river blindness)