On Which Other World in the Solar System Do We

Multiple Choice

On which other world in the solar system do we find evidence of ice rafts (now apparently frozen) similar in many respects to ice rafts in the Arctic Ocean?

A) In the tropical regions of Saturn's satellite Titan
B) On Pluto,in the equatorial region facing most directly toward the Sun
C) On Mars,at the edges of the polar caps
D) In the icy surface of Jupiter's satellite Europa