What classification is Area C on the depicted airport?

Area C is classified as a closed runway because it has been designated as not being operational for aircraft takeoffs and landings. This classification typically indicates that the runway is either undergoing maintenance, repairs, or is otherwise restricted for use by aircraft for safety reasons.

Closed runways are marked accordingly in airport diagrams and are important for pilots to recognize to avoid entering a non-operational area, which could pose risks to aircraft operations and safety on the airport premises. Understanding the visual indicators and classifications at an airport, such as the difference between operational and closed runways, is crucial for navigation and compliance with air traffic control directives.