PLEASE HURRY!!!!! Which evidence best supports the following topic sentence:

The first pest United Nations should get under control is the mosquito

A. Masqitos lay eggs in pools of stagnant water, which is often found in marshes
B. Masqitos spread malaria, yellow fever, and other diseases that kill millions of people
C. There are currently over 3,500 different species of mosquito in thw world
D. Most experts consider DEET to be the best chemical for repelling mosquitos
(put your explination too)