Who is permitted to purchase Class D pesticides?

The correct understanding is that Class D pesticides, which are generally considered to pose a lower risk to human health and the environment, can be purchased by anyone, including the general public. This classification is designed to accommodate various users, from homeowners to businesses, who may need these products for common pest control issues.

In contrast, the other choices imply restrictions that do not apply to Class D pesticides. Licensed exterminators would typically have access to a wider range of more regulated pesticides, which would include Class A, B, or C pesticides that require specific training and licensing. Farmers, while they may deal with pesticides, do not exclusively hold the rights to purchase Class D pesticides, and the same goes for individuals with permits, as they are not required to purchase Class D ones. This broader accessibility reflects the intended use of these pesticides for general pest control purposes without the need for specialized training or licensing.