Final answer:
Traction is needed to maintain directional control for acceleration, turning, and braking.
Step-by-step explanation:
Traction is needed to maintain directional control. You need traction in order to:
- Accelerate: Traction allows the tires to grip the road surface and propel the vehicle forward.
- Turn: Traction helps the tires maintain grip on the road while turning, allowing the vehicle to change direction.
- Brake: Traction is necessary for the tires to grip the road surface and slow down or stop the vehicle.
Therefore, the answer is all of the above (D).