Final answer:
FSIS, part of the USDA, is the government body tasked with addressing complaints regarding the wrong labeling of meat products, as its role includes ensuring that meat, poultry, and egg products are safe and properly labeled.
Step-by-step explanation:
The government body that handles complaints of wrong labeling of meat products is the Food Safety and Inspection Service (FSIS). FSIS is an agency of the US Department of Agriculture (USDA) responsible for ensuring that the nation's commercial supply of meat, poultry, and egg products is safe, wholesome, and correctly labeled and packaged. In contrast, the Food and Drug Administration (FDA) is responsible for protecting the public health by ensuring the safety, efficacy, and security of human and veterinary drugs, biological products, and medical devices, as well as food supply safety, cosmetics, and products that emit radiation. The Health and Human Services (HHS) is the parent agency of the FDA that oversees programs related to health and welfare. The Animal and Plant Health Inspection Service (APHIS) is another branch of the USDA that focuses on protecting and promoting agricultural health, administering the Animal Welfare Act, and carrying out wildlife damage management activities. However, for complaints regarding meat labeling, FSIS is the appropriate agency. While APHIS helps safeguard food production, FSIS specifically deals with the labeling and safety of meat products.