What is a lifeline used for?

A lifeline is primarily used to provide safety and support to individuals in precarious situations, particularly in search and rescue operations. It is a strong rope or line that is used to secure a person, giving them stability and preventing falls or accidents while navigating difficult terrain or engaging in rescue activities. This utility is essential for maintaining the safety of rescuers and victims alike, especially in environments where there is a risk of slipping or falling.

While securing tents, hauling equipment, or anchoring a boat has its importance in outdoor and rescue operations, the fundamental purpose of a lifeline is to ensure the safety of people. This is why the correct answer highlights its role in supporting individuals during potentially dangerous tasks.