$\backslash$table$[[$Task$,$Immediate Predecessor$($s$),$Duration $($days$)],[$A$,$None,$2],[$B$,$None,$4],[$C$,$A$,8],[$D$,$B$,1],[$E$,$C$,$ D$,6],[$F$,$D$,2]]$

a$.$ Draw the Network diagram and include the Early Starts $($ES$),$ Early Finishes $($EF$),$ Late Starts $($LS$),$ and Late Finishes $($LF$)(10$ points$)$

b$.$ What is the expected completion time of this project? $(2$ points$)$

c$.$ What is the critical path through this project? $(2$ points$)$

d$.$ How much slack is in Activity C$?$ What does this mean? $(3$ points$)$

e$.$ How much slack is in Activity E$?(2$ points$)$