Rock-Tenn Rock-Tenn Produces Packaging Products.They Make Cartons That Will Hold a a Dozen

Rock-Tenn
Rock-Tenn produces packaging products.They make cartons that will hold a dozen Dunkin' Donuts,waffle fries for Chik-fil-A,Gillette razors,Haagen -Daz ice cream,express mail envelopes for FedEx and much more.Rock-Tenn business fluctuates depending on consumer demand.As plastic products become more expensive companies turn to cardboard and paper to package their products.
-Refer to Rock-Tenn.A paper producing company sales representative wants to do business with Rock-Tenn.The representative needs to locate the person who actually negotiates the purchase,in other words,the _____ in the buying center.

A) influencer
B) gatekeeper
C) decider
D) purchaser
E) user