Use reasoning to lead to the answer of the following question:
As he looked out the window, he knew the landing was happening soon, and it made him nervous, but where would he be soon?
Options:
- apartment building
- disembark
- stairwell
- deplane
- airport
 Reasoning process:
Airport is a complex of runways and buildings for the take-off, landing and maintenance of civil aircraft, with facilities for passenger. As he looked out the window, he knew the landing was happening soon, and it made him nervous, but he would be at airport soon. Therefore, the final answer is airport.