Which rules apply to vessels that are in sight of each other?

The correct response pertains to the application of Rules 11-18 of the International Regulations for Preventing Collisions at Sea (COLREGs), which specifically address vessels that are in sight of one another. These rules are focused on steering and sailing rules to prevent collisions and are tailored to situations where vessels can visually detect each other.

For vessels that are in sight of one another, these rules outline various responsibilities regarding actions that must be taken when navigating near each other, such as determining which vessel should give way and which vessel should stand on. Rules 11 through 18 cover different scenarios, including encounters between sailing vessels, power-driven vessels, and vessels constrained by draft, among others, and provide clarity on navigation and conduct in tighter quarters or more congested waters.

Other rules mentioned in the options, such as 1-10, primarily establish general obligations and definitions of terms applicable on a global scale, and those beyond Rule 18 focus on actions taken under specific conditions, like restricted visibility and vessels constrained by their draft. Thus, the specific focus of Rules 11-18 makes them the correct framework for describing conduct between vessels that can see each other.