A component manager and a functional manager disagree over a shared resource. The program manager should:

1. ARemove the shared resource from both of them entirely in order to end the dispute
2. BSimply let the disagreement drag on and stall the work for an indefinite period
3. CAutomatically side with the functional manager in the dispute every single time
4. DFacilitate a resolution aligned with program priorities and escalate if it is needed