Concept:Malaria is caused by Plasmodium species and is spread by the bite of infected female Anopheles mosquitoes.Explanation:Plasmodium falciparum is a malaria parasite.It is transmitted when an infected female Anopheles mosquito bites a human and injects the parasite into the bloodstream.Other mosquito species like Aedes and Culex do not transmit malaria caused by Plasmodium falciparum.Answer:A. female Anopheles mosquitoes