What is the primary purpose of herbicides?

Herbicides are specifically formulated chemical substances designed to kill or inhibit the growth of unwanted plants, commonly referred to as weeds. This primary purpose helps to enhance crop yield and minimize competition for nutrients, water, and light among plants. When used effectively, herbicides support agricultural practices by controlling undesirable plant species that could otherwise reduce the health and productivity of desired crops. It is important to note that while other types of pesticides address insect control or fungi management, herbicides have a unique focus solely on targeting plant life, making option B the correct choice.