Before you start your engine, __________.

Adjusting the seat before starting the engine is crucial for ensuring that you can comfortably and effectively reach all necessary controls. This entails positioning yourself so you can access the steering wheel, pedals, and other essential features without straining your body. Proper seat adjustment enhances your ability to respond quickly and safely to situations that may arise while driving.

Ensuring that your seat is in the correct position creates a stable driving posture, which is vital for maintaining control of the vehicle. Additionally, a properly adjusted seat contributes to better visibility of the road and surroundings, allowing for safer driving.

The other options involve actions that either place unnecessary focus on starting the car without ensuring control factors or skip the important safety checks regarding the vehicle's position and surroundings. Therefore, prioritizing seat adjustment lays a solid foundation for safe driving practices right from the start.