Answer to Question 1
B
Answer to Question 2
C
An effective antimalarial intervention is the use of insecticide-treated bed nets. Malaria is con-tracted by being bit by an infected mosquito; it cannot be passed by direct person-to-person con-tact. IV quinine is the drug of choice for treating malaria, not preventing it. Some mosquitoes are resistant to DDT, so this may not be effective.