Malaria brings about 1 to 1.5 million deaths each year. It is a communicabledisease caused by a parasitic protozoan, which is transferred to the human bloodstream by a mosquito. Symptoms include fever, shivering, joint pain, headache, and vomiting. In severe cases, patients can have kidney failure and can lapse into a coma.It is prevalentin the tropics and countries in sub-Saharan Africa, where nearly 90% of all malaria cases occur. Cases of malaria constitute25% of children’s deaths in Africa. The disease-carrying mosquitoes flourish around stagnantwaters. Therefore, protective measures include developing drainage programs. Protective clothing, repellents, bed nets, and mosquito control programs are also effective.
Read the sentence from the passage."Cases of malaria constitute25% of children's deaths in Africa."Which word is a synonym for constitute? A.abandonB.controlC.make upD.start with