$\backslash$table$[[$Activity$,$Duration $($days$),$Predecessors$],[$A$,5,$None$],[$B$,3,$A$],[$C$,8,$A$],[$D$,6,$B$],[$E$,4,$B$,$ C$],[$F$,2,$C$],[$G$,7,$D$,$ E$],[$H$,3,$E$],[$I$,4,$F$],[$J$,6,$H$,$ I$]]$

$2\mathrm{.}1.$ Construct a network diagram.

$2\mathrm{.}2.$ Determine ES$,$ EF$,$ LS$,$ LF$,$ Slack.

$2\mathrm{.}3.$ Determine the critical path and project completion time.

$2\mathrm{.}4.$ If you need to reduce the project duration by $4$ days, identify which activities