Which of the following is effective in decreasing a danger zone?

Covering the brake is an effective strategy for decreasing a danger zone because it prepares the driver to react promptly to potential hazards. By holding the brake pedal without fully engaging it, the driver can reduce the vehicle's speed more quickly if needed, which enhances control and reaction time in situations where sudden stops or adjustments are required. This proactive approach increases the driver's awareness of the surrounding environment and allows for better decision-making in critical moments.

In contrast, heavy loads can increase the stopping distance and overall difficulty of handling the vehicle, making it less safe. Sustained high speeds elevate the risk of losing control and reduce the time available to react to hazards, increasing the danger. Increasing the vehicle size can create larger blind spots and maneuvering challenges, which may also contribute to danger rather than reduce it. Thus, covering the brake stands out as the most effective option for minimizing risks in potentially hazardous situations.