The activities, immediate predecessors, and times appear in the accompanying table:

$\backslash$table$[[$Activity$,$Immediate Predecessor$($s$),$Time $($days$)],[$A$,-,2],[$B$,-,6],[$C$,-,1],[$D$,$B$,10],[$E$,$A$,$ D$,3],[$F$,$C$,5],[$G$,$E$,$ F$,12]]$

This exercise contains only parts $b,c,$ and $d.$

b$)$ The critical activities for the leadership training program development project are $B-D-E-G.$

c$)$ The project length for the leadership training program development project $=$ days.