The rotation of the solar system makes the Sun and Moon seem to move. The rotation of Earth makes the Sun and Moon seem to move. The Sun and Moon revolve around Earth. Earth revolves around the Sun and the Moon.
I gave my students this multiple choice question: Why do the Sun and Moon appear to move across the sky?

Only one answer is correct among these 4 choices:
- The rotation of the solar system makes the Sun and Moon seem to move.
- The rotation of Earth makes the Sun and Moon seem to move.
- The Sun and Moon revolve around Earth.
- Earth revolves around the Sun and the Moon.

Could you tell me which one is correct?

The rotation of Earth makes the Sun and Moon seem to move.