be smaller than Earth. have a source of light inside. have a smoother surface than Earth. have fewer impact craters on the surface.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A model of the Moon would be different from a model of Earth in that the Moon should
Possibilities:
- be smaller than Earth.
- have a source of light inside.
- have a smoother surface than Earth.
- have fewer impact craters on the surface.

be smaller than Earth.