The correct options are
A Malaria is a protozoan infection
B It is caused by P. falciparum, P. vivax and P. malariae, P ovale
D It is spread by the female Anopheles mosquito
Malaria is caused by four species of the protozoan parasite, Plasmodium, namely, P. falciparum, P. vivax and P. malariae, P ovale. The parasite, is spread from person-to-person by a carrier, the female Anopheles mosquito.