What should divers regularly monitor to minimize stress underwater?

Monitoring dive depth and time left is crucial for divers to minimize stress underwater. Keeping track of depth helps divers avoid exceeding their limits and reduces the risk of decompression sickness. Understanding remaining bottom time is equally important, as it allows divers to manage their air supply effectively and ensures they do not exceed safe limits for their dive profile.

While a buddy's comfort level and weather conditions are also important factors for a diver's safety and overall dive experience, they are not as directly related to the individual stress experienced during the dive itself. Monitoring the dive depth and remaining time directly influences a diver's operational safety and decision-making, thus playing a significant role in minimizing stress.

The option that includes all factors may suggest a broader awareness, but the most critical aspect specifically related to minimizing underwater stress is the direct management of dive depth and time remaining. This focus helps divers stay within safe operational parameters and enhances their overall safety and comfort during the dive.