The Manner in Which the Large, Outer Planets Formed in Our

Multiple Choice

The manner in which the large, outer planets formed in our solar system was MOST likely the

A) gravitational condensation of hydrogen, helium, and dust in eddies or vortices in the outer solar nebula.
B) gravitational condensation of hydrogen and helium gas, followed by the capture of planetesimals.
C) accretion of planetesimals to form a core, followed by the gravitational capture of hydrogen and helium gas.
D) accretion of cold planetesimals containing large quantities of hydrogen and helium.