Which is NOT an employer's duty if an injury occurs?

The answer is C because employers are not explicitly required to remain with an injured employee until help arrives. While it is certainly a best practice to offer support and stay in proximity to the injured person for comfort and reassurance, the legal duties of an employer in the event of an injury primarily focus on ensuring that proper medical assistance is provided and that documentation and notification procedures are followed.

Providing immediate medical assistance, gathering documentation of the incident, and notifying relevant authorities are all critical responsibilities employers must adhere to following an injury. These actions help ensure that the injury is properly addressed, documented for liability and insurance purposes, and reported to ensure compliance with workplace safety regulations. Therefore, while remaining with the injured employee can be beneficial, it is not a mandated duty in the same way the other responsibilities are.