Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.
A.Use the C02 system and evacuate the engine room
B.Use the fire main system and evacuate the engine room
C.Evacuate the engine room and use the C02 system
D.Evacuate the engine room and use the fire main system
