Assume there are five jobs $($i$.$e$.,$ A$,$ B$,$ C$,$ D$,$ and E$)$ that need to be sequenced in a production schedule. The remaining operating time necessary for completion of job A is $3$ days $($i$.$e$.,$ job A will take $3$ more days to complete$),$ B will take $9$ days, C will take $6$ days, D will take $5$ days and E will take $8$ days. Which job should be scheduled last if using the SOT priority rule for job sequencing?

$1.$

A

$2.$

B

$3.$

C

$4.$

D

$5.$

E