Which behavior is recommended when driving to ensure safety?

Fastening seat belts before starting the vehicle is a crucial behavior recommended for ensuring safety while driving. This practice is fundamental because seat belts are designed to protect occupants in the event of a collision by limiting their movement and reducing the risk of serious injury or death.

Using seat belts is not just a personal safety measure; it is also a legal requirement in many places. This rule applies to all passengers in the vehicle, reinforcing the importance of safety for everyone aboard. Additionally, the action of fastening seat belts instills a safety-oriented mindset before engaging in any driving maneuvers.

Other options highlight practices that may contribute to safety but do not emphasize the immediate and essential action of securing oneself with a seat belt before the vehicle is in motion. Adjusting mirrors only when parked could result in blind spots while driving. Continuously adjusting mirrors while driving could distract the driver from focusing on the road. Checking mirrors solely during lane changes may lead to missed hazards or changes in traffic conditions. Therefore, fastening seat belts is the most critical initial step in promoting overall safety on the road.