Which one support the solar nebula theory of the origin of the solar system?

Which one of what? Review my Nov 2010 answer to the complete question below

The Solar Nebula Theory is the widely accepted scientific explanation for the origin of our solar system. It proposes that our solar system was formed about 4.6 billion years ago from a cloud of gas and dust called the solar nebula. Over time, this nebula collapsed under its own gravity, forming a spinning disk-shaped structure. Eventually, the central region of this disk became the Sun, while the remaining material coalesced to form planets, moons, asteroids, and comets.

So, to determine which part or concept supports the Solar Nebula Theory, we need to look at the key elements of the theory:

1. Formation of the Sun: The solar nebula theory suggests that the central region of the nebula collapsed to form the Sun. This idea is supported by our current understanding of star formation and the observations of other protostellar systems in the universe.

2. Disk Formation: The theory states that as the nebula collapsed, it formed a spinning disk-shaped structure around the central region (which eventually became the Sun). This concept is supported by the observations of many young star systems that display such disk-like structures.

3. Planetary Formation: According to the theory, the remaining material in the disk gradually formed into planets, moons, asteroids, and comets through a process known as accretion. This idea is supported by observations of protoplanetary disks around young stars, as well as the presence of various types of celestial bodies in our own solar system.

In summary, the support for the solar nebula theory lies in the scientific evidence gathered from various observations of star and planetary formations, as well as the consistency of the theory with our current understanding of astrophysics.