Which of the Following Describes the Joint Decision Procedure

Which of the following describes the joint decision procedure?

A) The manager makes a decision alone without asking for the opinions or suggestions of other people, and these people have no direct influence on the decision; there is no participation.
B) The manager asks other people for their opinions and ideas and then makes the decision alone after seriously considering their suggestions and concerns.
C) The manager gives an individual or group the authority and responsibility for making a decision; the manager usually specifies limits within which the final choice must fall, and prior approval may or may not be required before the decision can be implemented.
D) The manager meets with others to discuss the decision problem and make a decision together; the manager has no more influence over the final decision than any other participant.