Which of the Following Examples Is Similar to the Decision-Making

Which of the following examples is similar to the decision-making process in a consultative buying centre?

A) James, the head of the core committee of a manufacturing firm, decides on the final value of the bid in a proposal without consulting the committee members.
B) Charles, a member of the expert committee consisting of 12 members, decides on a particular advertisement to be used in a marketing campaign, as the ad has been approved by 9 members of the committee.
C) Mark, who heads a team of qualified professionals, decides on a particular design for a product, after receiving input from the other members of the team.
D) David, the chief editor of a magazine, has the complete authority to make the final decision about which articles will be published in the magazine without informing the writers.
E) Kenneth, the head of an expert committee in a construction company, decides to buy raw materials from a particular supplier after all the experts agree that the firm will benefit from a deal with this particular supplier.