The Planets All Lie in Nearly the Same Plane Resulting

Multiple Choice

The planets all lie in nearly the same plane resulting in a disk-like structure for the solar system. This disk-like structure is believed to exist because

A) the solar nebula from which the planets formed had a disk-like structure.
B) the bipolar flow from the young Sun cleared all material out of the nebula except that in the disk.
C) Jupiter's gravity was great enough to pull all of the other planets to the plane of its orbit.
D) the Milky Way Galaxy from which the planets condensed has a disk-like structure