Which of the following is a sign that a diver may be in distress?

Erratic movements are a significant indicator that a diver may be in distress. When a diver is struggling with buoyancy control, air supply, or panic, their movements tend to become unpredictable and chaotic. This can manifest as flailing limbs or sudden changes in direction, which are particularly concerning during a dive. These erratic behaviors can stem from physical discomfort, anxiety, or potential equipment malfunctions, all of which signal that a diver may require immediate attention and assistance.

In contrast, controlled breathing and a calm demeanor typically suggest that a diver is managing their dive environment well. A diver who is relaxed and breathing steadily is more likely to be in a comfortable state rather than experiencing distress. Delayed responses to questions can indicate that a diver may not be fully engaged or aware of their surroundings, but it is less definitive than erratic movements when it comes to identifying distress. Therefore, erratic movements are a clear and concerning sign of potential distress in a diver.