As you enter a U.S. channel from seaward the numbers on the buoys __________.

Correct Answer: Option B — increase with the can buoys being odd numbered

In the U.S. Aids to Navigation System, when entering from seaward, red buoys are even-numbered and green buoys are odd-numbered. As you proceed upstream or into a channel from seaward, the numbers on these lateral aids increase sequentially. This provides a consistent reference for position along the channel.