Which of the following is usually the vector of parasites?

Insect and arthropod parasites can be spread through many media, the most common ones include all kinds of insects and arthropods, such as fleas, lice, ticks and so on. These vectors can spread parasitic pathogens to the host and develop and reproduce in the host. Parasites refer to a kind of organisms that live in other organisms and depend on them for survival. Parasites can be parasitic on humans, animals and plants, and some parasites can cause serious diseases, such as malaria and schistosomiasis.