What does OHSA stand for?

The correct answer is that OHSA stands for Occupational Safety and Health Administration. This federal agency, part of the U.S. Department of Labor, was established to ensure safe and healthy working conditions by setting and enforcing standards and providing training, outreach, education, and assistance. The agency plays a critical role in protecting workers' rights and ensuring safe work environments across various industries.

The other options do not accurately represent the official name of the agency. While "Occupational Health and Safety Authority" and "Occupational Hazard Safety Association" may suggest similar themes regarding workplace safety, they do not refer to the specific governmental agency responsible for the enforcement of safety regulations in the workplace. The option "Office of Hearing Safety Administration" doesn't correspond with any recognized agency relating to occupational safety or health. Thus, the choice of "Occupational Safety and Health Administration" correctly identifies the agency known for its impact on workplace health and safety regulations.