A person who holds a Qualified Applicator Certificate in the "Plant Agriculture" category cannot?

The correct understanding centers around the specific authorities granted to a person holding a Qualified Applicator Certificate (QAC) in the "Plant Agriculture" category. This certification allows individuals to engage in certain activities related to the application of pesticides, but not all roles associated with pesticide management.

Individuals with a QAC are typically empowered to supervise the application of restricted materials on agricultural crops and can apply both general use pesticides and restricted materials directly. They also have the authority to supervise others who apply these materials. However, the regulation regarding the sale or supervision of sales of agricultural pesticides often extends beyond the scope of what a QAC in the "Plant Agriculture" category covers. This role typically requires a different set of qualifications or certifications, often related to the business and sales aspects of pesticide distribution, which is not inherently included in the "Plant Agriculture" training.

Thus, the choice that indicates they cannot sell or supervise people who sell agricultural pesticides accurately reflects the limitations of the QAC certification, highlighting the distinct roles that apply to pesticide application versus pesticide sales and supervision.