Which of the following is a primary responsibility of lifeguards?

Monitoring swimmer safety is a primary responsibility of lifeguards because their main duty is to ensure the safety and well-being of individuals in and around aquatic environments. This involves actively observing swimmers for signs of distress, potential hazards, and unsafe behaviors. Lifeguards are trained to recognize patterns of behavior that may indicate someone is in trouble and to intervene appropriately. Their vigilance helps prevent accidents and drownings, making their role critical in maintaining a safe swimming environment.

In contrast, engaging in leisure activities, enforcing pool entry fees, and planning pool parties do not align with the core mission of lifeguarding. While lifeguards may occasionally participate in community events or help with recreational activities, their primary focus must always remain on the safety of all patrons.