The writer of the article believes that the moon will help people learn about Earth. Which sentence from the passage shows this idea?
A.
We know the Moon can tell us more about our own planet, and even our own sun.
B.
The lunar samples returned during the Apollo Program dramatically changed our view of the solar system.
C.
Yet, we are just scratching the surface of knowledge about the Moon.
D.
We believe the poles of the Moon hold millions of tons of water ice.