568.Which of the following statements about speed limits for special vehiclesperforming emergency duties is correct?
(A) All special vehicles carrying outemergency missions must fully comply with normal road speed limits.
(B) Fireengines, ambulances, police escort vehicles, and toxic chemical disasterresponse vehicles performing missions are not subject to normal speedregulations.
(C) Police escort vehicles and emergency engineering rescuevehicles on duty may slightly exceed the speed limit, but must still follow themaximum highway speed limit.