Question: Which airport is located in North Carolina, Ronald Reagan Washington National Airport or Albert J. Ellis Airport?
Context: Albert J. Ellis Airport (IATA: OAJ, ICAO: KOAJ, FAA LID: OAJ) is a county-owned public-use airport in Onslow County, North Carolina, United States.  It is located in Richlands, 10 nautical miles (19 km) northwest of the central business district of Jacksonville and Marine Corps Base Camp Lejeune.  The airport has a single runway and three gates.  Opening on February 15, 1971, the airport is used by general aviation, military and is served by two commercial airlines, Delta Connection, and American Eagle. Air Wisconsin Airlines is a regional airline based at Appleton International Airport in the town of Greenville, Wisconsin, United States, near Appleton.  Air Wisconsin is the largest privately held regional airline in the United States.  It currently operates regional jet flights as American Eagle under contract to American Airlines via a code sharing agreement, serving cities in the U.S. and Canada with hubs at Boston Logan International Airport (BOS), Charlotte Douglas International Airport (CLT), Philadelphia International Airport (PHL) and Ronald Reagan Washington National Airport (DCA) .  Air Wisconsin previously operated United Express service on behalf of United Airlines followed by US Airways Express service on behalf of US Airways prior to becoming an American Eagle regional air carrier.  The company has announced it will once again partner with United Airlines as a United Express code sharing air carrier with primary hubs to be located at Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD) beginning in September 2017 and will be "exclusively operating" as United Express by March 2018. Ronald Reagan Washington National Airport (IATA: DCA, ICAO: KDCA, FAA LID: DCA) is an international airport 3 mi south of downtown Washington, D.C. in Arlington County, Virginia, United States.  It is the nearest commercial airport to the capital and serves the Baltimore-Washington metropolitan area.  For decades it was called Washington National Airport before being renamed to honor President Ronald Reagan in 1998.  The Metropolitan Washington Airports Authority (MWAA) operates the airport with close oversight by the federal government due to its proximity to the national capital.  It is a fortress hub for American Airlines. Trump Shuttle, Inc. was an airline owned by Donald Trump from 1989 to 1992.  The landing rights and some of the physical assets necessary to operate the shuttle flights were originally part of Eastern Air Lines and known as the Eastern Air Lines Shuttle.  It operated hourly flights on Boeing 727 aircraft from LaGuardia Airport in New York City to Logan International Airport in Boston, Massachusetts and Ronald Reagan Washington National Airport in Washington, D.C., then known as Washington National Airport, as well as charter service to other destinations.  Its IATA designator code was TB (later reassigned to Jetairfly). The Metropolitan Washington Airports Authority (MWAA) is an independent airport authority, created by the Commonwealth of Virginia, the State of Maryland, and the District of Columbia with the consent of the United States Congress to oversee management, operations, and capital development of the two major airports serving the capital: Ronald Reagan Washington National Airport and Washington Dulles International Airport. Baltimore/Washington International Thurgood Marshall Airport (IATA: BWI, ICAO: KBWI, FAA LID: BWI) is an international airport located in Linthicum in northern unincorporated Anne Arundel County, Maryland.  The airport is 9 miles south of downtown Baltimore and 32 miles northeast of Washington, D.C. It is the busiest, by passenger count, of three major airports serving the Baltimore–Washington metropolitan area in the United States, the other two being Ronald Reagan Washington National Airport and Washington Dulles International Airport.  It is commonly referred to as BWI or BWI Marshall.  The airport is named after Thurgood Marshall, a Baltimore native who became the first African American to serve on the Supreme Court of the United States. Ronald Reagan Washington National Airport (formerly National Airport) is a Washington Metro station in Arlington, Virginia on the Blue and Yellow Lines.  The station platform is elevated and covered and is the last above ground station on the Yellow Line in Virginia, heading into Washington, D.C. It is one of only two stations in the system to have three tracks (the other being West Falls Church).  The station is located across Smith Boulevard from the B and C terminals at Ronald Reagan Washington National Airport (DCA); the airport shuttle bus carries people to and from Terminal A.  The mezzanines are directly connected to the B and C terminals by pedestrian walkways to Level 2 (gate level).  The airport's Abingdon Plantation historical site is near the station. Dulles International Airport is a planned Washington Metro station at Washington Dulles International Airport in Loudoun County, Virginia on the Silver Line.  It is scheduled to begin operation in 2020, linking Dulles by rail to Washington, D.C. and Ronald Reagan Washington National Airport via Rosslyn.  The station was originally planned to be underground, and feature a tunnel to the Dulles baggage claim area.  Current plans call for an above-ground station next to daily parking garage 1. Washington-Hoover Airport was an airport serving the city of Washington, D.C., in the United States from 1933 to 1941.  It was created by the merger of Hoover Field and Washington Airport on August 2, 1933.  It was in Arlington, Virginia, near the intersection of the Highway Bridge and the Mount Vernon Memorial Highway (where The Pentagon and its parking lots now stand).  Washington-Hoover Airport, like its predecessors, suffered from safety problems, short runways, and little room to grow.  It closed for public use in June 1941, and the United States Department of War purchased the site in September, closing it for good.  Washington National Airport (now known as Ronald Reagan Washington National Airport), which opened in June 1941, was built as its replacement. US Airways Shuttle was the brand name for US Airways' hourly air shuttle service operating in the Northeastern United States.  It served Logan International Airport in Boston, LaGuardia Airport in New York City, and Ronald Reagan Washington National Airport in Washington, D.C.
Answer: Albert J. Ellis Airport