Answer: D. The Milky Way
The Milky Way is the name of the galaxy that contains our solar system. It is a large, spiral galaxy that rotates once every 200 million years and is made up of at least 100 billion stars.
The name "milky way" is a translation of the Latin "via lactea," and refers to the appearance it has from Earth: a band of light formed by undistinguishable stars.