Consuela Velasquez is a receptionist for a group of seven physicians. As she controls the calendars for the physicians, any sales representatives from pharmaceutical companies wanting to call on the physicians have to go through Consuela. As a result, it is very important for sales reps to cultivate a good relationship with her. In the buying center, Consuela would be best described as a:
A. buyer.
B. user.
C. influencer.
D. gatekeeper.
E. decider.
Answer: D. gatekeeper.