Given the following information about four jobs,

$\backslash$table$[[$Job$,\backslash$table$[[$Processing Time$],[($Days$)]],$Due Date$],[$A$,10,10],[$B$,5,8],[$C$,15,25],[$D$,8,15]]$

According to EDD sequencing rule, the average flow time is:

$26$ days

$81$ days

$20\mathrm{.}25$ hours

$20\mathrm{.}25$ days