What would happen after the sequence of commands below?

Time left

router$-0$#erase startup$-$config

Erasing the nvram filesystem will remove all configuration files!

Continue? $[$confirm$][$enter$]$

$[$OK$]$

Erase of nvram: complete

$*$Mar $717$:$55$:$20\mathrm{.}405$: $\%$SYS$-7-$NV$\_$BLOCK$\_$INIT: Initialized the geometry of nvram router$-0$#reload

System configuration has been modified. Save? $[$yes$/$no$]$:n

Proceed with reload? $[$confirm$][$enter$]$

$*$Mar $717$:$55$:$31\mathrm{.}079$: $\%$SYS$-5-$RELOAD: Reload requested by console.

Reload Reason: Reload Command.

a$.$ The router will come up into setup mode

b$.$ The router will not boot anymore

c$.$ The router will boot normally with the previous valid configuration

d$.$ The router will boot normally with factory defaults

Clear my choice