Which of the following is the carrier of malaria-causing protozoan?

A vector is a carrier that transmits a disease-causing agent from one host to another. Vectors can be living organisms, such as mosquitoes, ticks, and fleas, or non-living objects, such as needles or syringes contaminated with a pathogen.

Female anopheles mosquito acts as a primary vector for the malarial parasite, Plasmodium. Female Anopheles mosquitoes feed on the blood of humans and other animals to obtain the protein necessary for laying eggs. The female Anopheles mosquito is most active during the night and early morning hours and is typically found near stagnant water sources, such as swamps and pools, where its eggs can hatch. To prevent being bitten by Anopheles mosquitoes and reduce the risk of malaria transmission, it is important to use insecticide-treated bed nets, wear protective clothing, and use insect repellent. In addition, reducing stagnant water sources and improving access to clean water can also help control mosquito populations.