Which designation would you use to label a circular target with the number AA1015?

The designation for a circular target is indeed labeled as a "Circular Target." This classification is specifically used to indicate targets that are defined by their radius and uniformity in all directions from a center point. In the context of fire support operations, understanding target designations is critical for effective communication and coordination during engagements.

A circular target's designation helps in ensuring that the fire support assets are aiming at the correct target area while minimizing the risk of collateral damage. Circular targets, like those designated with a unique identifier such as AA1015, include features that facilitate the precise delivery of fire support within that defined area, thereby providing clear guidance to units involved in the mission.

The other options refer to different target characteristics that do not apply in this scenario. Rectangular targets have defined length and width, point targets focus on a specific point rather than an area, and Final Protective Fire refers to a type of predesignated defensive fire. Each of these classifications serves distinct purposes in military operations, but in this case, the clear and correct answer is that a circular target is the appropriate designation for the specified label.