Which option shows a correctly configured IPv$4$ default static route?

Question $9$ options:

ip route $0\mathrm{.}0\mathrm{.}0\mathrm{.}0255\mathrm{.}255\mathrm{.}255\mathrm{.}255$ S$0/0/0$

ip route $0\mathrm{.}0\mathrm{.}0\mathrm{.}0255\mathrm{.}0\mathrm{.}0\mathrm{.}0$ S$0/0/0$

ip route $0\mathrm{.}0\mathrm{.}0\mathrm{.}0255\mathrm{.}255\mathrm{.}255\mathrm{.}0$ S$0/0/0$

ip route $0\mathrm{.}0\mathrm{.}0\mathrm{.}00\mathrm{.}0\mathrm{.}0\mathrm{.}0$ S$0/0/0$