From Earth, the Milky Way galaxy appears as a band of stars in the night sky. Which answer best explains the reason for this?

A.

The Milky Way is an elliptical galaxy shaped like a long, narrow band.

B.

We see the edge of the Milky Way's flattened shape from our perspective inside one of the galaxy's spiral arms.

C.

The illusion of a band of stars is caused by Earth's rotation from a central position at the center of the galaxy.

D.

The irregular shape of the Milky Way extends over Earth for about 20,000 km, covering the distance from the North Pole to the South Pole.