Which of the Following Firms Is an Example of a Consensus

Which of the following firms is an example of a consensus buying centre?

A) a manufacturing firm in which the head of the finance team decides on the value of the bid after a detailed discussion with top management
B) a construction firm which will finalize a particular plan only if it is approved by most of the qualified engineers who are part of the designing team
C) a mining firm in which the head of the buying centre decides to buy equipment from a particular supplier, as most of the participants are satisfied with the proposal of this supplier
D) a car company which decides on a particular tire supplier after receiving the approval of all the experts who were part of the decision-making committee
E) a consulting firm in which the head of the recruitment team makes the final decision on
Recruiting a candidate, irrespective of the decision made by other interviewers