What is depicted on the collar device of a Senior Chief Petty Officer?

The collar device of a Senior Chief Petty Officer in the U.S. Coast Guard features a gold anchor with a silver shield and one silver star on top. This design signifies the rank and the responsibilities that come with the position. The gold anchor symbolizes the officer's service and commitment to the naval tradition, while the silver shield represents authority and leadership. The presence of the silver star indicates the Senior Chief's elevated rank above that of a Chief Petty Officer.

In the context of the other options, they include variations in color and symbols that do not accurately reflect the official insignia for a Senior Chief Petty Officer. Each differing arrangement of anchors, shields, and stars corresponds to ranks that are either higher or lower in the enlisted structure, making option A the correct representation of the Senior Chief Petty Officer's collar device.