$3\mathrm{.}8$ 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$,-,2],[$B$,-,5],[$C$,$A$,10],[$D$,$A$,3],[$E$,$B$,$ C$,6],[$F$,$D$,2],[$G$,$E$,$ F$,8]]$

a$)$ Develop an AON network for this problem.

b$)$ What is the critical path?

c$)$ What is the total project completion time?

d$)$ What is the slack time for each individual activity?