What is the primary role of the Animal Plant Health Inspection Service (APHIS) regarding animal welfare?

The primary role of the Animal Plant Health Inspection Service (APHIS) in relation to animal welfare is to enforce the Animal Welfare Act. This federal agency is responsible for ensuring that animals used in research, exhibition, and as pets are treated humanely and in accordance with established standards. Enforcement involves conducting inspections of facilities, ensuring compliance with regulations, and taking action against those who violate animal welfare standards.

The other choices highlight important activities but do not encompass APHIS's primary function. For instance, while educating the public about animal rights is valuable, it is not APHIS's main objective. Similarly, providing funding for research or conducting research may be relevant but are not central to APHIS’s mission, which focuses more on regulation and enforcement of animal welfare standards rather than funding initiatives or pursuing research activities.