20. What is the purpose of a life buoy? A. To extinguish fires B. To assist in water rescues C. To provide breathing assistance D. To alert the crew in an emergency

The purpose of a life buoy is:B. To assist in water rescuesA life buoy is a safety device used to keep a person afloat in water, particularly in emergencies such as drowning situations. It is designed to provide buoyancy and help ensure the safety of individuals in aquatic environments.