Which altitude qualifier indicates that an aircraft is at a specific assigned altitude within 200 feet?

The altitude qualifier that indicates an aircraft is at a specific assigned altitude within 200 feet is "Mode C Reported." This refers to the capability of the aircraft's transponder to provide altitude information, allowing air traffic control (ATC) to receive and monitor the actual altitude the aircraft is maintaining. Mode C helps ensure that ATC can accurately assess aircraft separation and manage traffic effectively, particularly in controlled airspace where precise altitude reporting is critical for safety.

The other choices, while relevant to altitude reporting, do not convey the same specificity. "Generic Altitude" denotes a less precise altitude reference without the strict accuracy or jurisdiction that Mode C implies. "VFR Status" indicates that an aircraft is operating under Visual Flight Rules but does not imply a specific altitude within a defined range. "Flight Level" refers to an altitude expressed in hundreds of feet and does not specify adherence to an assigned altitude within a certain margin. Hence, Mode C Reported is the best choice for indicating an aircraft's altitude with the necessary precision.