Answer :
This is how these locations would be ranked based on their distance from the center of the Milky Way Galaxy, from farthest to closes:
1 - a globular cluster in the outskirts of the halo (A)
2 - a cloud of gas and dust in the outskirts of the disk (D)
3 - our solar system (B)
4 - the edge of the central bulge (C)
1 - a globular cluster in the outskirts of the halo (A)
2 - a cloud of gas and dust in the outskirts of the disk (D)
3 - our solar system (B)
4 - the edge of the central bulge (C)