An Example of a Supplier That Used Its Bargaining Power

An example of a supplier that used its bargaining power to charge high prices to its customers is

A) Wal-Mart, which required many of its suppliers to alter their distribution systems to accommodate Wal-Mart's need to control the flow of goods to its stores.
B) the firms that supply paper napkins to McDonald's restaurants.
C) the Technicolor Company, the sole producer of cameras and film that movie studios needed to produce color movies in the 1930s and 1940s.
D) the publishers of the Encyclopedia Britannica.