While driving, you notice an ambulance on an emergency call approaching. You must bear in mind that...

A)you may run a red light to let the ambulance pass.
B)you must drive faster to clear the way for it.
C)you must make way for it by pulling over to the right or stopping if necessary.Correct
Appropriate measures must be taken to facilitate the passage of vehicles on emergency calls depending on the circumstances of the moment and location. In some cases it will be necessary to move the vehicle to the right edge of the carriageway, and in others to stop.
Priority vehicles will warn us that they are on an emergency call using the flashing light and the audible warning device. Exceptionally, they may use the flashing light alone when omitting the audible signals poses no danger whatsoever to other road users. (The flashing light alone is sufficient to give them priority.)