What is the bid$-$ask spread if the current ask prices for DEF are $$4\mathrm{.}80$ and $$5\mathrm{.}05$ and current bid prices are $$4\mathrm{.}54$ and $$4\mathrm{.}69?$

$$0\mathrm{.}26$

$$0\mathrm{.}11$

$$0\mathrm{.}51$

$$0\mathrm{.}36$