The project sponsor indicates that one of the key stakeholders is very unhappy with the project schedule. The other stakeholders are happy with the schedule. Which of the following is the MOST likely reason why the stakeholder is unhappy with the schedule?

A.
The stakeholder has unrealistic expectations.

B.
The project manager did not obtain buy-in from the stakeholder.

C.
The project manager did not discuss the schedule with the stakeholders.

D.
The project manager did not schedule the project team appropriately.