Final answer:
The true statement about the North Atlantic Tracks is that Eastbound Tracks are labeled from A through K.
Step-by-step explanation:
The true statement regarding the North Atlantic Tracks (NAT) is that Eastbound Tracks are labeled from A through K. These tracks are indeed flight paths over the North Atlantic Ocean used by airplanes to optimize navigation and traffic control by organizing flights into predictable routes.
The labeling system helps with the identification and management of transatlantic traffic. It's important to note that the NAT system is dynamic and the specific tracks used can vary daily depending on weather conditions and traffic demands for efficiency and safety of transatlantic flights.