Which of the following is not one of the inner four planets?

The inner four planets are:

1) Mercury,

2) Venus,

3) Earth,

4) Mars,

Jupiter is planet #5 and one of the outer 4 giant planets.

Planet #6) Saturn,

7) Uranus

and 8) Neptune. Pluto used to be planet #9 but has been downgraded to a dwarf planet.