All of the following statements are from the selection. Which one best expresses the selection's
central idea?
But two of the Milky Way's satellite galaxies break all the
rules.
B
The stars of Andromeda even reveal how far away the
galaxy is.
That's because big galaxies steal gas from little galaxies
near them.
D
As the Magellanic Clouds go around the Milky Way, they
probably go around each other, too.