At Any Given Airport, the Airlines Hold Long-Term Leases for Passenger

Multiple Choice

At any given airport, the airlines hold long-term leases for passenger loading gates.New gates cannot be added without approval of the airlines.Frequent flier programs are also common in the industry.It is, therefore, more difficult for a new airline to enter a given airport (market) .Such factors: (i) are called barriers to entry.
(ii) tend to decrease the contestability of the air travel market.

A) i and ii
B) i not ii
C) ii not i
D) neither i nor ii