A functionality managed project is falling behind schedule, and the project manager asks the team to work without interruption until the project is back on track. The functional manager refuses to allow the team to be isolated from other work. Which of the following steps should be taken FIRST to help put the project back on track?

A. The functional manager should assume the risk to the timeline.
B. The project manager should assign additional resources to the project.
C. The project manager should escalate the issue to gain full attention.
D. The functional manager should agree to dedicate a portion of each day to the project.