What is the primary purpose of a safety line in a rescue operation?

The primary purpose of a safety line in a rescue operation is to ensure team members' safety. A safety line is an essential tool used to secure rescuers and keep them connected to a safety anchor point, which prevents them from falling or being set adrift in hazardous conditions. This connection helps maintain a level of security for team members while they perform rescues in environments that may be unstable or dangerous.

In high-angle, water, or other precarious rescue situations, the safety line acts as a lifeline that can provide immediate assistance if a rescuer slips, loses their footing, or encounters unexpected challenges. By ensuring that a team member is secured, the safety line contributes to a collective safety measure that protects not only the individual rescuer but also enhances the overall success and safety of the operation.

The other options reflect other functions or needs during a rescue operation but do not align closely with the essential and primary focus that the safety line serves, which is ensuring the safety of rescuers.