What insignia represents a Vice Admiral?

The insignia representing a Vice Admiral is indeed denoted by 2 silver stars. Each star symbolizes a specific rank within the naval hierarchy, with the number of stars directly correlating to the rank held. In this case, a Vice Admiral is a three-star officer, which is consistent with the option that showcases the insignia of 2 silver stars.

It's important to recognize that the naval rank structure is organized in a way where the insignia for lower ranks, such as Rear Admiral (Lower Half), is represented by 1 silver star, while the insignia for an Admiral, who holds a four-star rank, is indicated by 4 stars. Meanwhile, the gold oak leaf insignia is associated with the rank of Commander and does not pertain to the Vice Admiral rank at all. Understanding these distinctions in insignia and rank can clarify the structure and hierarchy within the naval forces.