Mark Manages a Small Family-Owned Amusement Park

Mark manages a small family-owned amusement park. He believes the park can increase its profits if its owners will buy three food concession trailers. Mark has contacted three dealers of such trailers, which come fully customized to user specifications. After receiving three bids, Mark concluded that Century Industries has the best offer. He will present only the Century Industries information to the family tomorrow. What buying center roles does Mark perform?

A) gatekeeper and buyer
B) decider and user
C) buyer and decider
D) influencer and buyer
E) influencer, gatekeeper, and decider