A partially solved PERT problem is detailed in the table below. Times are given in weeks.

$\backslash$table$[[$Activity$,$Preceding,Optimistic Probable Pessimistic Expec,$],[$A$,$Time,Time,Time,$],[$B$,$A$,2,2,8],[$C$,$A$,8,12,16],[$D$,--,3,5,10],[$E$,$C$,4,6,8],[$F$,$B$,6,8,10],[$G$,$F$,2,3,4],[$H$,$D$,$ E$,2,2,8],[$I$,$G$,6,8,16],[$J$,$H$,4,6,14],[$K$,$I, J$,2,2,5]]$

Which activities form the critical path?

$A-B-E-F-J$

A$-$B$-$E$-$F$-$K

A$-$C$-$E$-$H$-$J$-$K

B$-$C$-$E$-$H$-$J$-$K