Correct option is D
The correct answer is Protozoa.
Malaria is caused by a protozoan parasite of the genus Plasmodium, transmitted through the bite of female Anopheles mosquitoes.
Information Booster:
· Plasmodium falciparum is the deadliest species causing malaria.
· Malaria control includes use of insecticide-treated nets (ITNs) and antimalarial drugs.