Roger Ginde is developing a program in supply chain management certification for managers. Ginde has listed a number of activities that must be completed before a training program of this nature could be conducted. The activities, immediate predecessors, and times appear in the accompanying table:

$\backslash$table$[[,,],[$Activity$,$Immediate Predecessor$($s$),$Time $($days$)],[$A$,-,4],[$B$,-,6],[$C$,-,3],[$D$,$B$,10],[$E$,$A$,$ D$,4],[$F$,$C$,5],[$G$,$E$,$ F$,8]]$

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

b$)$ The critical activities for the leadership training program development project are

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

d$)$ Slack time for each of the activities is:

$\backslash$table$[[$Activity$,$Slack Time$],[$A$,$