SUNSHINE AIRLINE COMPANY The ER Diagram for the SUNSHINE AIRLINE COMPANY Is Based

SUNSHINE AIRLINE COMPANY
The ER Diagram for the SUNSHINE AIRLINE COMPANY is based on the following:
- For each airplane type,we keep track of a unique airplane type ID (AirplaneTypeID) ,number of engines (NoOfEngines) ,and number of seats (NoOfSeats) .
- For each airport,we keep track of a unique airport ID (AirportID) ,and the length of the main runway (LengthOfRunway) .
- Each airplane type is able to land at one airport at least,but may be able to land at many airports.Each airport accommodates landing of at least one airplane type,but may accommodate landing of more airplane types.

This ER diagram will be used for the following questions citing SUNSHINE AIRLINE ER Diagram.
-In the ER Diagram for the SUNSHINE AIRLINE COMPANY,which word should replace qqq?

A) AirplaneTypeID
B) NoOfEngines
C) AirportID
D) LengthOfRunway