Which type of conveyors are permitted to transport persons?

The correct answer focuses on the fact that only specific conveyors are designed and approved for the transportation of people. This includes specialized systems such as people movers or certain types of aerial tramways that are engineered with safety and functionality in mind for human passengers. These systems typically include safety features like secure harnessing, emergency stop systems, and voice or visual alerts to ensure the safety of riders.

In contrast, while all types of conveyors may transport materials, they are generally not configured to safely carry humans. Options that suggest all conveyors, bucket conveyors specifically, or those equipped with safety features may imply a broader acceptance that does not align with regulated best practices in safety. Conveyor systems primarily intended for material handling lack the design considerations necessary to safely accommodate people, which is why the focus stays on the specific conveyors intended for person transport.