Which of the Following Statements Does NOT Describe Tourism Industry

Which of the following statements does NOT describe tourism industry segments before the widespread adoption of the Internet?

A) Customers already had the benefits of information transparency and a broad range of product selection.
B) Airlines owned the proprietary systems, which listed available air inventories based on schedules with price being a secondary, hidden factor.
C) Basic schedule-based inventory practices continued even after airlines sold off the reservations systems.
D) Consumers bought airline tickets via the airlines' call centers and traditional travel agencies.