Kansas City International Airport (IATA: MCI, ICAO: KMCI, FAA LID: MCI) (originally Mid-Continent International Airport) is a public airport 15 miles (24 km) northwest of downtown Kansas City in Platte County, Missouri.
 In 2016, 11.04 million passengers used the airport.
Sir Barry Bowen Municipal Airport (formerly Belize City Municipal Airport) (IATA: TZA) is an airport that serves Belize City, Belize.
 It is only one mile from the city center, and is therefore more centrally located to the city than is Belize City International Airport.
 It mostly services travel to Belize's cayes, allowing quicker arrivals to the cayes than by boat or water taxi.
 The airport is named after the Belizean politician and entrepreneur Barry Bowen.
Charlotte Douglas International Airport (IATA: CLT, ICAO: KCLT, FAA LID: CLT) is a joint civil-military public international airport located in Charlotte, North Carolina, United States.
 Established in 1935 as Charlotte Municipal Airport, in 1954 the airport was renamed Douglas Municipal Airport after former Charlotte mayor Ben Elbert Douglas, Sr. The airport gained its current name in 1982 and, as of September 2017, it is the second largest hub for American Airlines after Dallas/Fort Worth International Airport, with service to 161 domestic and international destinations.
 As of 2016 it was the 5th busiest airport in the United States, ranked by passenger traffic and aircraft movements.
 It was also the 7th business airport in the world ranked by aircraft movements Charlotte is the largest airport in the United States without any nonstop service to Asia.
 The airport serves as a major gateway to the Caribbean Islands.
 CLT covers 5,558 acres (2,249 ha) of land.
Appleton International Airport (IATA: ATW, ICAO: KATW, FAA LID: ATW) , formerly "Outagamie County Regional Airport", is an airport located in Outagamie County, Wisconsin, United States, just west of Appleton in the town of Greenville.
 It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.
 It is the fourth-busiest commercial airport in Wisconsin in terms of passengers served.
 In 2016 the airport contributed $676 million dollars to the Northeastrn Wisconsin economy.
Bismarck Municipal Airport (IATA: BIS, ICAO: KBIS, FAA LID: BIS"') is in Burleigh County, North Dakota, three miles southeast of the City of Bismarck, North Dakota, which owns it.
 The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a "primary commercial service" airport.
Nashville International Airport (IATA: BNA, ICAO: KBNA, FAA LID: BNA) is a joint public and military use airport in the southeastern section of Nashville in the U.S. state of Tennessee.
 It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "primary commercial service" airport (more than 10,000 daily arriving and departing flights per year).
 Established in 1937, its original name was Berry Field, from which its ICAO and IATA identifiers are derived.
 The current terminal was constructed in 1987, and the airport took its current name in 1988.
 Nashville International Airport has four runways, the longest of which is 11030 ft long, a size adequate to handle all aircraft in service in 2017.
Green Bay–Austin Straubel International Airport (IATA: GRB, ICAO: KGRB, FAA LID: GRB) , is a county-owned public use airport in Brown County, Wisconsin, the United States serving Northeast Wisconsin.
 The airport is located seven nautical miles (13 km) southwest of downtown Green Bay, in the village of Ashwaubenon.
 It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.
 In previous years the FAA categorized the airport as a small hub.
 It sits on portions of land encompassing Green Bay and the Oneida Nation of Wisconsin's Indian reservation.
 It has two runways and is used for commercial air travel and general aviation.
 There are two concourses with six gates each, the first concourse was completed in July 2004 and the second concourse was completed in December 2005.
 They were designed by Mead & Hunt, Inc.
Portsmouth International Airport at Pease (IATA: PSM, ICAO: KPSM, FAA LID: PSM) , formerly known as Pease International Airport, is a joint civil and military use airport located one nautical mile (2 km) west of the central business district of Portsmouth, a city in Rockingham County, New Hampshire, United States.
 It is owned by the Pease Development Authority.
 It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.
Bishop International Airport (IATA: FNT, ICAO: KFNT, FAA LID: FNT) is a commercial and general aviation airport located in Flint, Michigan.
 It is named after banker and General Motors board member Arthur Giles Bishop (April 12, 1851 – January 22, 1944), who donated 220 acres of his farmland for the airport in 1928.
 The third busiest airport in Michigan, it surpassed competitor MBS International Airport in terms of airline operations in 2002.
 In 2007, 1,071,238 passengers used Bishop International Airport; in 2011, 938,914 passengers used the airport.
 It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a small hub primary commercial service facility.
 The airport is currently served by several passenger airlines: Allegiant Air, Southwest Airlines and Delta Air Lines operate mainline service out of the airport, as well as affiliates of Delta Connection, United Express and American Eagle.
 Additionally, FedEx Express and a FedEx Feeder affiliate operate cargo services out of the airport.
 Accompanying the airlines is fixed-base operator Av Flight that handles both general aviation and airline operations and the flight school American Wings Aviation.
 Bishop International Airport is in southwestern Flint, and is surrounded by Flint Township to the north, east and west; and Mundy Township to the south.
City of Colorado Springs Municipal Airport (IATA: COS, ICAO: KCOS, FAA LID: COS) (also known as Colorado Springs Airport) is a city-owned public civil-military airport 6 mi southeast of Colorado Springs, in El Paso County, Colorado.
 It is the second busiest commercial service airport in the state.
 Peterson Air Force Base, which is located on the north side of runway 13/31, is a tenant of the airport.

Question: Between Kansas City International Airport and Bismarck Municipal Airport, which airport is categorized as a primary commercial service airport?
Answer: Bismarck Municipal Airport