A new functional manager calls to tell the PM that someone from the functional team $($when a previous functional manager was there$)$ who had worked on the project is now gone. The PM indicates that an additional task is coming up for that functional group. Where can the PM reference to tell the functional manager what the knowledge and skill sets are for the work associated with this task $($Lecture $14)?$

The Project plan

An email to the previous resource who left

The Work package for the task

The Risk management plan for this area of the project