Which process is involved in the formation of a galaxy?
OA.
The angular momentum of the spin of the galaxy causes the material in the clouds to flatten and form a disk.
OB. Several smaller galaxies were formed when they broke away from a large galaxy.
OC. The nucleus is obscured because of the light emitted by a supermassive black hole.
OD. Gradual disaggregation of cloud fragments formed many smaller galaxies.
E. The dust found in the interstellar medium aggregates to form the disk.