In the event of fire in a machinery space, _____.

A
the fixed carbon dioxide system should be used only when all other means of extinguishment have failed
B
the fixed carbon dioxide system should be used immediately, as it is the most efficient means of extinguishment
C
water in any form should not be used as it will spread the fire
D
the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
E