$\backslash$table$[[$Activity$,$Preceding activity,Duration $($hours$)],[$A$,-,5],[$B$,-,14],[$C$,$A$,$ B$,17],[$D$,$C$,7],[$E$,$C$,14],[$F$,$D$,6],[$G$,$F$,3],[$H$,$E$,9]]$

$($a$)$ Construct the network diagram for the project.

$($b$)$ Identify the critical path.

$($c$)$ Calculate the expected completion time for the project.

$($a$)$ The network diagram for the project is