Consider the Project described in the table below.

$\backslash$table$[[$Activity$,\backslash$table$[[$Immediate$],[$Predecessor$($s$)]],\backslash$table$[[$Optimistic$],[$a$]],\backslash$table$[[$most likely$],[$m$]],\backslash$table$[[$Pessimistic$],[$b$]],$Number of operators Required$],[$J$,--,3,5,7,3],[$K$,--,1,2,3,4],[$L$,$J$,4,6,8,2],[$M$,$J$,2,4,6,2],[$N$,$K$,$M$,4,6,8,3],[$O$,$K$,$M$,1,2,3,2],[$P$,$L$,$N$,1,2,3,4]]$

For the activities table above: Use the "longest$-$duration$-$first" heuristic and Gantt chart Graph to prioritize activities for resource allocation $($if you have only $5$ operators$).$