Table $7\mathrm{.}4$

$\backslash$table$[[$Activity$,\backslash$table$[[$Predecess$],[$or$]],\backslash$table$[[$Time$($week$],[$s$)]]],[$A$,--,8],[$B$,$A$,6],[$C$,--,4],[$D$,$C$,9],[$E$,$A$,11],[$F$,$B$,3],[$G$,$D$,$ E$,$ F$,1]]$

Using Table $7\mathrm{.}4,$ what is the slack associated with activity $B?$

Select one:

A$.1$ week

B$.2$ weeks

C$.3$ weeks

D$.$ None of these is the correct activity slack for $B.$