The most probable time sequence for the information of the solar system was the following:
A. The Sun contracted first as a gas ball, and the planets and moons formed shortly afterward by accretion and condensation
B. The Sun formed first, the planets were spun off from the Sun, and the moons in turn were spun off from the planets
C. The planets formed first out of a cold nebula of gas and dust, followed by the Sun, which formed when the gas had become much hotter
D. The Sun formed initially, and the planets and major moons were captured much later as they drifted by the Sun