When is a wrecker considered to be an emergency vehicle? when they are loading along a roadway all of the answers are correct when their amber light is rotating or on when they performing a recovery along a roadway

All of the given answers are correct. Whether their lights are on or not, if the truck is working along side the road to recover or load a vehicle, they are considered emergency vehicles.

ANSWER: All of the answers are correct

EXPLANATION: A wrecker would be considered an emergency vehicle irrespective of what it is doing. The wrecker might be loading along a roadway or performing a recovery along a roadway or if the amber lights are rotating or kept on. Any of the situation can be an emergency situation and may require an emergency assistance. A wrecker may or may not keep its amber light on and may be they are loading along a roadway or even a recover along a roadway. All the three options are correct in considering a wrecker an emergency vehicle.