What is a key reason to report smoke in a compartment to the officer of the watch?

Reporting smoke in a compartment to the officer of the watch is crucial for initiating emergency response procedures. When smoke is detected, it serves as a key indicator that there may be a fire or hazardous condition developing, which requires immediate action to ensure the safety of personnel and the vessel.

By informing the officer of the watch, the necessary protocols can be activated promptly, including evacuation procedures, firefighting operations, and alerts to other crew members. This response can significantly mitigate the risks and dangers associated with smoke and potential fire, aiming to protect lives and property.

The other choices, although they may hold some significance in general circumstances, do not directly address the immediate requirement for protective actions that arise when smoke is detected.