According to Rule 9, how should vessels behave in a narrow channel?

In a narrow channel, the regulations specify that vessels should keep to the starboard side, which is the right side when facing forward. This practice helps to ensure that vessels can navigate safely and efficiently within the restrictive confines of the channel. By keeping to the starboard side, vessels create a consistent flow of traffic and reduce the risk of collisions, particularly with oncoming vessels or those navigating in the opposite direction.

Additionally, vessels must avoid impeding the safe passage of larger vessels that can navigate safely in the channel. Larger vessels often have a deeper draft and require more space and maneuverability, making it essential for smaller vessels to yield to them when safe passage is to be maintained. This aspect of the rule emphasizes the importance of situational awareness and cooperation among vessels to enhance safety in potentially hazardous navigation areas such as narrow channels.

The other choices do not accurately reflect the necessary conduct required by the regulations. Maintaining discipline and adherence to the specified conduct contributes significantly to maritime safety and effective navigation in constrained waterways.