Parking for travelers flying out of Hartsfield-Jackson International Airport in Atlanta is difficult, even for those who have the time to look. For those arriving at the airport with only time enough to catch their flight, parking was truly a nightmare until the development of the GoldParker System, which guarantees a convenient parking place to its members. The system is extremely popular among business travelers and works just as advertised. By instituting the GoldParker System, Hartsfield-Jackson's management has_______ to manage customer expectations:
A. Made realistic promises
B. Created effective horizontal communication
C. Offered a service guarantee
D. Engaged in public relations
E. Created a tiered-value service offering
Answer: E. Created a tiered-value service offering