QUESTION $4$

$[8$ Marks$]$

$4\mathrm{.}1.$ The table below belongs to $xYZ$ Project Solutions.

$\backslash$table$[[$Task$,$Predecessor,Duration in Days$],[$A$,-,5],[$B$,$A$,6],[$C$,$A$,3],[$D$,$B$,$ C$,9],[$E$,$D$,4]]$

$4\mathrm{.}1\mathrm{.}1$ Create a network diagram illustrating the XYZ Project Solution based on the provided data.

$(5$ marks$)$

$4\mathrm{.}1\mathrm{.}2$ Based on the network diagram drawn in question $4\mathrm{.}1\mathrm{.}1,$ determine the critical path.

$(3$ marks$)$