$\backslash$table$[[$Activity$,\backslash$table$[[$Predecess$],[$or$]],\backslash$table$[[$Time$($we$],[$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 minimum number of activities that would have to be delayed to cause an increase in the project's earliest completion date?

Select one:

A$.$ three activities

B$.$ two activities

C$.$ four or more activities

D$.$ one activity