You are the project manager. Upon presenting your charter to your sponsor, they requests several changes. What do you do?

a. Agree to all the changes in order to make your sponsor happy.

b. Refuse to change the charter, since that would be unfair to your team.

c. Have your team vote on whether or not to make the changes and go with the will of the majority.

d. Negotiate with your sponsor to see how you can best accommodate their requests without agreeing to unreasonable expectations.