How can bystanders assist in a rescue without putting themselves at risk?

The option that involves providing information and calling for services is the most effective way for bystanders to assist in a rescue without putting themselves at risk. Bystanders can play a critical role by assessing the situation, conveying relevant details such as the location and condition of the individuals in distress, and calling for emergency services. This ensures that trained professionals with the necessary skills and equipment arrive to handle the situation appropriately, thus enhancing the chances of a successful rescue while keeping everyone safe.

Jumping in to help could endanger the bystanders, particularly if they lack the training or equipment necessary to handle the challenges posed by the water and the distressed individuals. Distracting the rescuers would interfere with their efforts and could lead to further complications, while taking photographs may seem harmless but does not provide any practical assistance in a rescue situation and could also distract both the rescuers and bystanders from the critical task at hand. Engaging in supportive yet non-risky actions maximizes safety and efficiency during emergencies.