A technician is troubleshooting an issue involving programs on a Windows $10$ machine that are loading on startup but causing excessive boot times. Which of the following should the technician do to selectively prevent programs from loading?$($A$).$ Right$-$click the Windows button, then select Run entering shell startup and clicking OK$,$ and then move items one by one to the Recycle Bin$($B$).$ Remark out entries listed HKEY$\_$LOCAL$\_$MACHINE$>$SOFTWARE$>$Microsoft$>$Windows$>$CurrentVersion$>$Run $($C$).$ Manually disable all startup tasks currently listed as enabled and reboot checking for issue resolution at startup$($D$).$ Open the Startup tab and methodically disable items currently listed as enabled and reboot, checking for issue resolution at each startup.