When should a moped rider check their mirrors?

The correct choice emphasizes the importance of regularly checking mirrors while riding a moped, particularly before changing lanes. This practice enhances situational awareness and ensures that the rider is fully aware of their surroundings, which is crucial for safety. By checking mirrors regularly, a rider can monitor the position and movements of other vehicles, identify any potential hazards, and make more informed decisions about when to change lanes or navigate through traffic.

In contrast, limiting mirror checks to only specific moments, such as when making a turn or at stop signs, would increase the risk of missing vital information about surrounding traffic. Not checking mirrors at all would leave the rider unaware of vehicles approaching from behind or alongside, which could lead to dangerous situations. Therefore, the regular practice of checking mirrors is a fundamental aspect of safe riding.