$4.(25$ pts $)$ Jobs A$,$ B$,$ C$,$ D$,$ and $\backslash (\backslash$underline$\{\backslash$underline$\{$E$\}\}\backslash )$ are waiting for processing at the Sawing Work center. The processing times, number of operations, and due dates for these jobs are provided below. Move and queue time is $2$ days per operation remaining.

a$.$ In what sequence should these jobs be processed using the critical ratio priority rule. Show your work.

b$.$ In what sequence should these jobs be processed using the slack per operation priority rule. Show your work.

c$.$ In what sequence should these jobs be processed using the earliest due date rule. Show your work.