The Occupational Safety and Health Act of 1970 was created to assure what for workers?

The Occupational Safety and Health Act of 1970 was established primarily to ensure safe and healthful working conditions for employees. This legislation was a significant step towards improving workplace safety standards by creating the Occupational Safety and Health Administration (OSHA), which sets and enforces standards to protect workers from hazards on the job. The act emphasizes the importance of maintaining an environment where workers can perform their duties without the risk of injury or illness due to unsafe practices or hazardous conditions. Thus, the act directly addresses the physical and mental well-being of workers by mandating that employers create and maintain safe work environments, which aligns with the correct answer.

In contrast, the other options focus on aspects that, while beneficial to employees, do not directly address the core purpose of the Occupational Safety and Health Act. High salaries, job security, health insurance, and permanent employment are important workplace considerations but are not the primary focus of this act. The legislation's main objective is promoting safety and health, thereby differentiating it from the other options that pertain more to employment benefits and stability.