What is included in the sleeve device for an E-9 in the Navy?

The option indicating that an E-9 in the Navy includes an eagle and two stars above three chevrons and a specialty mark topped by a rocker is correct because it reflects the appropriate insignia for a Master Chief Petty Officer. In the Navy, the rank of E-9 is denoted by a Master Chief Petty Officer insignia, which consists of a five-pointed star over the eagle, along with three chevrons (representing the enlisted service rank), and a specialty mark that signifies the service member's specific technical field or area of expertise. The rocker at the top of this insignia further distinguishes the E-9 rank, making it clear that it is the highest enlisted rank within the Navy structure.

This comprehensive insignia conveys not only the rank but also the responsibilities and leadership position held by the individual, which is crucial in emphasizing their experience and capabilities within the Navy.