Which of the following is a key component of a rider's protective gear?

A DOT-approved helmet is a key component of a rider's protective gear because it serves as the primary line of defense against head injuries in the event of an accident. The Department of Transportation (DOT) establishes safety standards for helmets to ensure that they can withstand impacts and provide adequate protection. Wearing a helmet significantly reduces the risk of fatal head injuries and is crucial for safe riding.

While leather gloves, reflective clothing, and protective eyewear are also important for a motorcycle rider's safety and comfort, they do not provide the same level of critical protection for the head specifically as a helmet does. Gloves protect the hands, reflective clothing enhances visibility, and protective eyewear shields the eyes from debris and wind, but it is the helmet that is essential for preventing serious injuries in crashes.