If a fixed fire extinguishing system is installed on any vessel, it must be of a type approved by the __________.

Correct Answer: Option B — U.S. Coast Guard

Fixed fire extinguishing systems are critical safety installations that must meet rigorous performance standards. 46 CFR requires that all such systems be approved by the U.S. Coast Guard to ensure they provide adequate coverage, agent concentration, and operational reliability for the specific hazards present in the protected space.