After reviewing the monthly project performance report, the project manager, when monitoring & controlling risks, identifies the need to implement a contingency plan. What does the project manager need to do?
	A、Change the project work breakdown structure to accommodate the implementation of the contingency plan.
	B、Raise a change request to the project.
	C、Re-baseline the project so that the contingency plan can be executed.
	D、Raise an issue and escalate to the senior manager.
