Which of the following classes of pesticides would be used to kill mites?

The correct choice for killing mites is the class of pesticides known as "miticides." Miticides are specifically formulated to target and eliminate mite populations, which are tiny arachnids that can cause damage to plants and may pose health issues to humans and animals. They operate by disrupting the life cycle or physiological processes of mites, making them effective in pest control applications.

While "acaricide" is another term that refers to compounds that kill acarids, including both mites and ticks, "miticide" is more specifically focused on mites. In many contexts, the terms may be used interchangeably, but the primary focus here is on the term that directly indicates its intended use, which is to control mite infestations.

Herbicides, on the other hand, are designed to kill or inhibit the growth of unwanted plants (weeds) and have no effect on mites. Rodenticides are targeted toward controlling rodent populations and are not relevant for mite control. Both herbicides and rodenticides serve different purposes and do not apply to the management of mite issues.