How fit should a diver be to respond to an emergency?

A diver should be fit enough to avoid injury and exhaustion when responding to an emergency because physical fitness directly impacts a diver's ability to handle high-stress situations effectively. In emergencies, divers may need to perform strenuous tasks, such as swimming against currents, controlling buoyancy, or assisting another diver. Being physically fit ensures that a diver possesses the endurance, strength, and agility necessary to manage these challenges safely without succumbing to fatigue or reducing their effectiveness.

In addition, a fitness level that minimizes the risk of injury is crucial. A well-conditioned diver is less likely to sustain injuries due to the demanding physical requirements often present in rescue situations. They are also more likely to maintain clear thinking and sound judgment, both of which are essential for safety and successful outcomes in emergencies.

While the other options touch on aspects of diver fitness, they either suggest a level of fatigue or strength that could compromise safety (exhaustion, risk of injury) or imply diving capabilities that are unrealistic without proper equipment. The emphasis on fitness to avoid injuries and exhaustion distinguishes this choice as the most appropriate response for ensuring readiness in emergency situations.