The Jovian Planets Have High Masses and Hence Generate Powerful

Multiple Choice

The Jovian planets have high masses and hence generate powerful gravitational fields, and yet they have low average densities. What does this fact indicate about their interiors?

A) The Jovian planets are composed almost entirely of ice crystals and dust.
B) The Jovian planets are composed almost entirely of water.
C) The interiors of the Jovian planets are hot and gaseous, like those of cool stars.
D) The Jovian planets are composed almost entirely of hydrogen and helium.