Which of the following is an example of a naval message address in PLA?

The correct choice represents a typical format for naval message addressing by using a unique identifier followed by the full name of the vessel. In this context, "USS" stands for "United States Ship," which is the prefix applied to commissioned ships of the U.S. Navy. The vessel name "Yorktown" is then appropriately noted, adhering to the conventions used for addressing naval messages.

This format is crucial because it ensures clarity and uniformity in communication within naval operations, allowing personnel to quickly recognize and understand the reference to the specific ship. The use of both the abbreviation and the full name helps to avoid confusion, especially in diverse operational contexts where various naval forces may be communicating.

The other options consist of similar naming conventions but may not fully comply with the format that is typically expected in naval message addressing. For instance, while they provide identifiers, the combination of prefix and the name might not align perfectly with the Naval designation practices or could include variations that are less standard in message addressing.