As you enter a channel from seaward in a U.S. port, the numbers on the starboard side buoys __________.

Correct Answer: Option A — increase and the buoys are red

Under IALA Region B, 'Red Right Returning' dictates that red conical/nun buoys with even numbers mark the starboard side of channels when returning from seaward, and green can buoys with odd numbers mark the port side.