Which of the following steps is crucial for ensuring personal safety during a rescue?

Assessing the situation before entering the water is vital for ensuring personal safety during a rescue. This step allows the lifeguard to evaluate the conditions surrounding the incident, including the water's state, possible hazards, the number of victims, and the behavior of the bystanders. By taking a moment to gather this information, the rescuer can make informed decisions that reduce the risk of injury to themselves.

For instance, evaluating the water conditions helps the lifeguard understand potential dangers like strong currents or obstacles beneath the surface, which could impact both the rescuer and the victim. Additionally, assessing the number of bystanders or other potential hazards ensures that the rescuer is prepared for any unforeseen challenges. Taking the time for this assessment is a proactive approach that prioritizes the safety of the rescuer, allowing for a more effective and controlled rescue effort.