Bay Area Rapid Transit (BART) Practice Exam 2025 - Free BART Practice Questions and Study Guide

The correct answer is that a worker should provide their own protections when none are available from the employer. This emphasizes the importance of workplace safety and the responsibility of the employer to ensure that adequate protective gear and safety measures are in place. If an employer does not provide necessary protection, it becomes the worker's responsibility to ensure their safety through personal protective equipment. This ensures that the worker is not left vulnerable to hazards that could be mitigated with appropriate protective measures.

The other choices present scenarios that do not align with the principle that employers are generally responsible for providing safe working conditions. When working alone, a worker might need to rely on existing protections, and simply choosing to provide their own protections does not fulfill an obligation that should lie with the employer. Moreover, the idea that providing protections is never required contradicts workplace safety laws and regulations, which stipulate that employers must take steps to protect their employees.