Stanley Works at a Large Electronicsfirm

Stanley works at a large electronicsfirm. Heneeds a new type of software and sends in a purchasing request. The request gets approved. Greg works as a purchasing agent and is in charge of selecting the suppliers and negotiating the terms of purchase. However, before he does so he consults with Marcus, an engineer who works in IT and is highly familiar with the latest software. In this case, Stanley is the ___________, Greg is the _______________, and Marcus is the _____________.

A) decider; influencer; gatekeeper
B) user; buyer; influencer
C) influencer; buyer; user
D) user; decider; gatekeeper
E) decider; gatekeeper; influencer