Which of the following is a primary role of OSHA?

The primary role of OSHA (Occupational Safety and Health Administration) is to ensure safe and healthful working conditions for employees by setting and enforcing standards and by providing training, outreach, education, and assistance. Reducing workplace injuries is a fundamental aspect of its mission, as OSHA strives to minimize hazards that could lead to accidents, injuries, or illnesses in various work environments. The agency develops regulations designed to protect workers' safety and facilitate safer workplace practices, making this choice the most aligned with OSHA's core purpose.

The other options, while important in their respective fields, do not accurately reflect OSHA's main focus. Enforcing environmental laws is primarily the responsibility of the Environmental Protection Agency (EPA). Regulating e-commerce falls under the jurisdiction of various trade and commerce authorities, while promoting public health typically involves health departments and agencies like the Centers for Disease Control and Prevention (CDC). Therefore, the emphasis on reducing workplace injuries clarifies the central role OSHA plays in occupational safety.