Question: Westport Airport, in the district of Wichita, is in the Class C airspace of which neighbouring airport which is the largest and busiest in the state of Kansas?
Sentence (from "Westport Airport (Kansas)"): Westport Airport (FAA LID: 71K) is a privately owned, public use airport located three nautical miles (6 km) southwest of the central business district of Wichita, a city in Sedgwick County, Kansas, United States—and is in the Class C airspace of neighboring Wichita Dwight D. Eisenhower National Airport.
Relevant evidence: Yes