Schedule the following activities using CPM:

$\backslash$table$[[$ACTIVITY$,$IMMEDIATE PREDECESSOR,TIME $($WEEKS$)],[$A$,-,3],[$B$,$A$,4],[$C$,$A$,9],[$D$,$B$,2],[$E$,C,D,7],[F,$D$,3],[$G$,F,4],[$H$,E,G,5]]$

b$.$ What is the critical path?

A$-$B$-$D$-$F$-$G$-$H

A$-$B$-$D$-$E$-$H

A$-$C$-$E$-$H

A$-$C$-$E$-$F$-$G$-$H

c$.$ How many weeks will it take to complete the project?

Number of weeks

d$.$ which activites have slack, and how much?