Who must be notified before removing the seawater sprinkler system from readiness condition?

The correct choice highlights the need for communication with specific operational personnel before any actions that could affect safety and operational readiness are taken. In the context of maritime safety and firefighting protocols, DC Central (Damage Control Central) and the Officer of the Deck (OOD) play crucial roles in managing ship readiness and emergency responses.

Notifying DC Central ensures that those responsible for damage control are aware of any adjustments to safety systems like the seawater sprinkler system, which is vital in combating fire onboard. The OOD has overall responsibility for the safe operation of the ship and needs to be informed about such changes to maintain a heightened state of readiness and situational awareness.

This communication is crucial to ensure that the ship's operations continue smoothly and that all safety measures are in place, especially when dealing with systems critical for fire protection. Other options, while they may involve some level of notification, do not address the operational protocol required for maintaining ship safety in the context of removing a fire suppression system from readiness.