According to Current Theories, How Did the Sun's Planets Get

According to current theories, how did the sun's planets get here?

A) Stars such as the sun, and planets such as those around the sun, all formed shortly after the big bang, and then gathered into "solar systems" such as we see today.
B) The sun was originally part of the two- star system, the second star split up into pieces, and these pieces developed into the planets.
C) After the sun had formed, it gathered fully- formed planets from various places as the sun moved through the galaxy.
D) A passing star tore off part of the sun, and this part separated into pieces to form the planets.
E) Part of the gas and dust that gathered together to form the sun went into orbit around the sun instead of falling into the sun, and this part formed the planets.