What Is a Popular Theory for the Difference in Atmospheres

Multiple Choice

What is a popular theory for the difference in atmospheres of the Jovian planets versus terrestrial planets?

A) High temperatures and solar wind in the inner planets allowed most of the volatiles to be driven off the terrestrial planets,but not the Jovian planets.
B) The Jovian planets are just bigger,so they trap more gases.
C) The Jovian planets trapped most of the comets which carried the gases.
D) The terrestrial planets are too cold to retain anything but heavy gases.