Please utilize the information below to work the problem specified below $($it is problem $3\mathrm{.}8$ from the text$).$ Please complete the following: $(1)$ Construct a CPM network. $(2)$ Draw the AON network, and compute the Critical Path Utilizing the forward and backward pass. $(3)$ Be able to articulate the critical path, as well as each activity on node time $($latest start, latest finish, early start, early finish$).$

$\backslash$table$[[$CODE$,$AC TIVITY,DESCRIPTION,TIME $($IN HOURS$),$IMMEDIATE PREDECESSOR$($$$)],[$A$,$Planning,Find location; determine resource requirements,$20,$None$],[B,$Purchasing,Requisition of lumber and sand,$60,$Planning$],[$C$,$Excavation,Dig and grade,$100,$Planning$],[$D$,$Sawing,Saw lumber into appropriate sizes,$30,$Purchasing$],[$E$,$Placement,Position lumber in correct locations,$20,$Sawing, excavation$],[$F$,$Assembly,Nail lumber together,$10,$Placement$],[$G$,$Infill,Put sand in and under the equipment,$20,$Assembly$],[$H$,$Outfill,Put dirt around the equipment,$10,$Assembly$],[1,$Decoration,Put grass all over the garden, landscape, paint,$30,$Infill, outfill$]]$

What is the latest start time for D$?$