Answer:
4. U.S. Department of Agriculture
Step-by-step explanation:
The U.S. Department of Agriculture, one of the most powerful executive departments in the United States, has as one of its functions the responsability to ensure food safety.
For this goal, it has one subdivision: the Food Safety and Inspection Service, which has over 9,000 employees across the U.S.
That is the specific department that would carry out the inspection, and initiate legal proceedings in case of irregularities. It is in charge of ensuring food safety for consumers in the places where food is manipulated, distributed, and sold.