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, P. malariae and P. ovale. The parasite is spread from person to person by a carrier, the female Anopheles mosquito.