Final answer:
The student's question about Rule 3 for a vessel constrained by her draft does not match any of the given options verbatim, but the closest answer is that such vessels must display specific lights and shapes. Rule 3 by itself does not contain the detailed directives found in the options provided but refers to recognizing the constraints of vessels in regard to their maneuverability.
Step-by-step explanation:
The question pertains to Rule 3 for a vessel that is constrained by her draft as defined in nautical regulations. Rule 3 outlines specific actions and requirements for vessels limited by their draft to ensure safe navigation and avoid collisions.
To directly answer the student's question, none of the options provided are technically labeled as "Rule 3" for a draft-constrained vessel within the International Regulations for Preventing Collisions at Sea (COLREGs). However, such vessels must operate under specific conditions. They should exhibit appropriate lights and shapes, maintain a safe speed, and possibly navigate within certain channels. Additionally, according to the COLREGs, they generally do not have the right of way over vessels that are not constrained by their draft, meaning they will often have to give way to other vessels.
That being said, the closest answer to what is described in similar rules would be option 1, as vessels constrained by draft must exhibit specific lights and shapes to indicate their status. Other options listed, such as maintaining safe speed and distance (stemming from Rule 6 of the COLREGs), and navigating in narrow channels (stemming from Rule 9), while applicable under certain circumstances, are not specific to Rule 3 alone. Giving way to vessels not constrained by their draft is generally aligned with the overarching principles of the COLREGs but is not solely Rule 3.