Which of the following are signs of drowning that lifeguards should look for?

The correct choice highlights critical signs of drowning that lifeguards must be vigilant about. When an individual is drowning, their physical responses often include flailing arms as they struggle to stay above water, gasping for air due to panic or exhaustion, and positioning their body vertically, which indicates they are not swimming efficiently or may be unable to keep their head above water. These behaviors are clear indicators of distress and require immediate attention from a lifeguard.

Calm swimming and floating, as well as diving below the surface and resurfacing, may not indicate distress or drowning. Many proficient swimmers are capable of floating or diving safely. Jumping and splashing water might suggest playful behavior or active swimming rather than a sign of drowning; therefore, they are not reliable indicators of a person in trouble. Recognizing the specific signs of distress is essential for effective lifeguarding and ensuring prompt intervention to prevent drowning incidents.