What is used to prevent accidental flooding of a double bottom or peak tanks in the event of a pipe rupture due to collision?

A
Separate lines are provided for filling and pumping these tanks.
B
Pipe lines must run vertically from the tank to a point above the margin line before turning fore or aft towards the pump.
C
All tanks must be served by the fewest possible number of pipes to reduce the possibility of rupture.
D
Suction lines are fitted with a non-return valve
E