The Presence of Dwarf Galaxies Around the Milky Way Supports

Multiple Choice

The presence of dwarf galaxies around the Milky Way supports what picture of our galaxy's formation?

A) The galaxy formed by the merger of two large galaxies, which scattered their dwarf companions to large distances.
B) The galaxy originally formed with no dark matter but gained its dark matter by the absorption of smaller dwarf systems.
C) The galaxy formed in a giant explosion caused by the violent collisions of clouds of dark matter.
D) The galaxy formed a long time ago and has been passively evolving since.
E) The galaxy formed by the merger of smaller systems.