QUESTION $11$

Table $7\mathrm{.}11$

$\backslash$table$[[,$Time $($weeks$)],[$Activity$,\backslash$table$[[$Immediate$],[$Predecessor $($s$)]],\backslash$table$[[$Most$],[$Optimistic$]],\backslash$table$[[$Most$],[$Likely$]],\backslash$table$[[$Most$],[$Pessimistic$]]],[$A$,--,1,2,3],[$B$,$A$,2,4,12],[$C$,$A$,1,2,3],[$D$,$B$,6,7,8],[$E$,$B$,$C$,10,12,14],[$F$,$D$,2,3,4],[$G$,$E$,$F$,1,5,15],[$H$,$A$,2,5,14]]$

Using Table $7\mathrm{.}11$ what is the earliest expected time of completion of the whole project? greater than $19$ but fewer than or equal to $21$ weeks greater than $24$ weeks

greater than $21$ but fewer than or equal to $24$ weeks fewer than or equal to $19$ weeks