The Sun orbits around the Earth. Earth orbits around the Sun. Earth turns on its axis. The Sun turns on its axis.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What is the correct explanation for why we have day and night on Earth?
Possibilities:
- The Sun orbits around the Earth.
- Earth orbits around the Sun.
- Earth turns on its axis.
- The Sun turns on its axis.

Earth turns on its axis.