As your vessel is heading southward along the east coast of the United States, you encounter a buoy showing a red flashing light. How should you pass this buoy?

Correct Answer: Option A — Leave it to your starboard.

Proceeding southward along the U.S. Atlantic coast is legally defined as entering from seaward relative to coastal lateral systems. Red buoys with red flashing lights must be kept to the vessel's starboard side in accordance with IALA Region B standards.