5. Glorietta Manufacturing specializes in making luxury leather goods from exotic skins, such as snake, lizard, and alligator. In the last few years it has been increasingly difficult to obtain high quality, unblemished alligator skins. It's main source of alligator skins, Gator-Rama Ranch, has a number of other customers. So, Glorietta's management has decided to enter acquisition negotiations with Gator-Rama in order to gain control over Gator-Rama's output. This is an example of a a. merger. b. horizontal acquisition. c. hostile takeover. d. vertical acquisition