Which of the following actions should be taken when the red warning light of the engine oil pressure comes on during a drive?

The illumination of the red oil pressure warning light indicates a critical failure of the engine's lubrication system. Continuing to drive, even for a very short distance, without adequate lubrication leads to engine seizure and irreversible damage to the engine. Therefore, you should immediately stop the vehicle in a safe place and switch off the engine to prevent its destruction.