If after reducing power to a gas turbine engine in response to a high lube oil supply temperature alarm, the temperature continues to rise, your next step should be which of the following?

Correct Answer: Option C — Shutdown the engine.

Persistent high lube oil temperatures despite power reduction indicate a critical failure in the cooling or lubrication system. To prevent catastrophic bearing seizure, fire, or total engine destruction, the operator must immediately execute an emergency shutdown to protect the machinery and the vessel's propulsion capability.