A boat operating in a narrow channel is required to keep as close as is safe to which side?

When navigating in a narrow channel, a boat is required to keep as close as is safe to the side that is closest to starboard. This practice helps maintain safe passage for all vessels within the channel and adheres to the rules of navigation that aim to prevent collisions. By keeping to the starboard side, boaters ensure they are following the commonly accepted guidelines, which facilitate the flow of traffic and make it easier for vessels to pass each other safely.

It is also important for maintaining visibility and space for larger vessels that may be navigating in the channel. Following this guideline ensures compliance with navigational rules and helps to enhance safety measures for all boaters. The other options do not reflect the standard practices for navigating narrow channels and could lead to confusion and potentially dangerous situations on the water.