The cause of malaria is

Explanation

The correct answer is Plasmodium. Plasmodium is a group of parasitic protozoa that causes malaria in humans. Malaria is transmitted through the bites of infected female Anopheles mosquitoes, which carry the Plasmodium parasites. Once inside the human body, these parasites multiply in the liver and infect red blood cells.The other options are incorrect as they refer to organisms unrelated to the cause of malaria. Amoeba can cause amoebic dysentery, Paramecium is a non-parasitic ciliate found in water environments, and Chlorella is a type of algae that is not pathogenic to humans.