The project information for the custom order project of the Air Control Company is presented here. Draw a project network Page $198$ for this project. Compute the early and late activity times and slack times. Identify the critical path.

$\backslash$table$[[$ID$,$Description,Predecessor,Time$],[$A$,$Order review,None,$2],[$B$,$Order standard parts,A$,3],[$C$,$Produce standard parts,A$,10],[$D$,$Design custom parts,A$,13],[$E$,$Software development,A$,18],[$F$,$Manufacture custom hardware,C$,$ D$,15],[$G$,$Assemble,B$,$ F$,10],[$H$,$Test,E$,$ G$,5]]$