What is the range of rules covered in Part C?

The correct choice identifies the range of rules covered in Part C of the COLREGs, which is specifically concerned with the conduct of vessels in different situations to prevent collisions at sea. Part C includes rules that range from 20 to 31, covering aspects such as the conduct of vessels in restricted visibility, actions during head-on, crossing, and overtaking situations, as well as specific rules related to various types of vessels.

This part is vital because it provides detailed operational guidelines that vessels must adhere to while navigating to ensure safety and collision avoidance. By correctly identifying the range of rules in Part C, one demonstrates an understanding of the regulations that govern vessel behavior in dynamic maritime environments.