Priority vehicles travelling on an emergency call will signal their presence...
A)using the audible signal only.
B)by simultaneously using the hazard warning signal and the audible signal.
C)by simultaneously using the flashing light signal and the audible signal.Correct
Priority vehicles travelling on an emergency call will signal their presence by simultaneously using the flashing light signal and the special audible warning device. However, their drivers may use the light signal alone when omitting the special audible signals poses no danger whatsoever to other road users.