When should a driver check their mirrors?

Answer: B — Frequently, to maintain awareness of surroundings

A driver should check their mirrors frequently to maintain awareness of their surroundings because regular mirror checks are essential for safe driving. This practice helps drivers be aware of vehicles and obstacles that may not be visible through their front windshield. It assists in monitoring other traffic, especially when changing lanes, merging, or making turns, and can help anticipate potential hazards. By frequently checking mirrors, drivers can react more effectively to the actions of others on the road, ensuring they can make informed decisions and maintain a safe distance from other vehicles. This habit contributes significantly to overall road safety and enhances situational awareness, enabling drivers to navigate dynamically in various driving conditions.