Question $22($Mandatory$)(3$ points$)$

INput$/$Output software layering is in the following order relative to the proximity to hardware

device drivers, device$-$independent OS software, interrupt handlers, user$-$level I$/$O software

interrupt handlers, device drivers, device$-$independent OS software, user$-$level I$/$O software

user$-$level I$/$O software, interrupt handlers, device drivers, device$-$independent OS software

interrupt handlers, device$-$independent OS software, device drivers, user$-$level I$/$O software