$2.$ You need to consult the example at textbook page $384($FIGURE $9-8$ Resource leveling$)$ to do this exercise: The following table shows activities with duration, dependency, dependency type, and the number of workers from one small segment of a project network. Draw the segment of the AOA network diagram and then: $($a$)$ Show the resource usage $($chart$)$ if activities A$,$ B$,$ and C start on day one; $($b$)$ Show the new network diagram and the resource usage $($chart$)$ when resources are leveled after applying appropriate slack times along with the $.$

$($Note: $\backslash (\backslash$mathrm$\{$d$\}=\backslash )$ discretionary, $\backslash (\backslash$mathrm$\{$m$\}=\backslash )$ mandatory; for example, Task E has dependency type d which means the predecessors of E which are tasks B and D can be moved around to create new dependency when drawing the new network diagram. Task $\backslash ($ G $\backslash )$ has a dependency type $\backslash ($ m $\backslash )$ which means that however way tasks are moved the task G must still have E and F as its predecessors. $\backslash (\backslash$mathrm$\{$d$\}(\backslash$mathrm$\{$D$\})\backslash )$ means activity $\backslash ($ D $\backslash )$ has discretionary dependency on Task $\backslash ($ F $\backslash )$ and $\backslash ($ m$($B$)\backslash )$ means activity has B mandatory dependency on Task F$).$