Which of the following describes the primary use of the RB-M 45?

The primary use of the RB-M 45 is for search and rescue operations. This vessel is specifically designed to operate in challenging maritime environments and is equipped with features that enable it to effectively carry out rescue missions. Its speed, agility, and advanced navigation systems allow for rapid response to emergencies at sea, making it ideal for saving lives in distress situations.

In contrast, while commercial fishing vessels are built for fishing activities, the RB-M 45 is not equipped for such operations. Similarly, leisure boating does not align with the RB-M 45's designed purpose, as it is not intended for recreational use. Research and survey missions may require specialized equipment and vessels tailored for scientific analysis, which the RB-M 45 does not focus on. Overall, its design and capabilities distinctly support search and rescue as its main operational role.