What are common signs that indicate a swimmer is in distress?

A swimmer in distress often exhibits clear behavioral signs that indicate they are struggling. The correct choice highlights these critical indicators: a swimmer who is struggling to stay afloat may wave their arms, try to signal for help, or display panic-like behavior. These signs are crucial for lifeguards and others to recognize because they suggest the swimmer may be unable to call for help verbally and is in immediate need of assistance.

This option focuses on the physical struggle and expressions of distress, which are essential for ensuring safety in aquatic environments. Being able to identify these signs allows lifeguards to act promptly and address the needs of the swimmer before a situation escalates into drowning or other serious consequences. In contrast, options that include maintaining a strong stroke, floating calmly, or breathing normally do not represent distress; rather, they indicate that the swimmer is likely safe and in control of their situation.