tilt of the Earth. tilt of the Moon. revolution of the Earth around the Sun. revolution of the Moon around the Earth.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The phases of the Moon are caused by the
Possibilities:
- tilt of the Earth.
- tilt of the Moon.
- revolution of the Earth around the Sun.
- revolution of the Moon around the Earth.

revolution of the Moon around the Earth.