Drivers should always yield to emergency vehicles that are using their sirens and flashing lights. a. traveling in the same direction as the driver.. b. traveling in the opposite direction as the driver.. c. traveling in any direction.. d. none of the choices are correct.

Drivers should always yield to emergency vehicles that are using sirens and flashing lights in any direction. The correct answer is C. 

The Correct Answer is C). "Emergency vehicles traveling in all directions".

Explanation:

There are a few stages you need to obey when an emergency vehicle is approaching on either side of the direction. these steps are such as:

While traveling by car on the road which is two-lane just give a signal and slowly move your vehicle towards the right side of the road, try to be as close as possible to the right edge of the road, clear any of the intersection and stop the vehicle.On the other hand while traveling by car on a highway which is multi-lane just slow down your vehicle then provide a signal and slowly move your vehicle towards the right side of the highway. If possible, try to be as close as you can to the right side of the roadway and stop when it is safe.

The answer would be d, coherence.