A MODU helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least __________.

Correct Answer: Option C — 50 gallons per minute

46 CFR 108.489 requires that MODU helicopter decks used for fueling operations feature a fire protection system capable of delivering a foam spray at 100 psi with a minimum discharge rate of 50 gallons per minute, ensuring sufficient coverage to suppress high-risk fuel fires effectively.