What is the sequence generated by the shown diagram?

$11\mathrm{.}01\mathrm{.}00,10,11$ and then repeats

$01\mathrm{.}10\mathrm{.}1100\mathrm{.}01$ and then repeats

$10\mathrm{.}00\mathrm{.}11\mathrm{.}01\mathrm{.}10$ and then repeats

$00,0110\mathrm{.}11\mathrm{.}00$ and then repests