according to nebular theory, in what order did the solar system form? group of answer choices contraction of solar nebula -> condensation of solid particles -> accretion of planetesimals -> clearing the disk accretion of planetesimals -> contraction of solar nebula -> condensation of solid particles -> clearing the disk contraction of solar nebula -> accretion of planetesimals -> clearing the disk -> condensation of solid particles accretion of planetesimals -> contraction of solar nebula -> clearing the disk -> condensation of solid particles