The table below is the optimal table for an assignment problem $($original table also shown$),$ assign jobs to workers $($hint: start with row$/$column with lowest number of zeros$)$

$\backslash$table$[[$Optimal Table,Original Table$],[,,$Worker Cost $($$$),,,$Worker Cost $($$$)],[,,$A$,$B$,$C$,$D$,,,$A$,$B$,$C$,$D$],[$J$,x,24,0,9,0,B,x,80,40,50,46],[$Y$,5,51,0,0,$Y$,40,70,20,25],[$Z$,4,$a$,9,14,$Z$,30,10,20,30],[$W$,0,1,5,5,$W$,35,20,25,30]]$

a$.$ Job X to worker D$,$ Job Y to worker C$,$ Job Z to worker A$,$ Job W to worker B

b$.$ Job X to worker C$,$ Job Y to worker D$,$ Job Z to worker B$,$ Job W to worker A

c$.$ None of the answers

d$.$ Job X to worker C$,$ Job Y to worker D$,$ Job Z to worker B$,$ Job W to worker A

e$.$ Job X to worker D$,$ Job Y to worker C$,$ Job Z to worker B$,$ Job W to worker A