Which Saturnian moon has the leading hemisphere black as tar, the back side icy white?

Question

Quizplus · Accepted Answer

Iapetus has a stark color contrast between its leading hemisphere, which is black as tar, and its trailing hemisphere, which is icy white. None of the other options have this distinct color difference. Iapetus has a unique coloration with one hemisphere black as tar (called "Cassini Regio") and the other hemisphere icy white. This coloration is due to the accumulation of dark material on the leading hemisphere from debris in its orbit, while the trailing hemisphere remains bright and icy.

Which Saturnian Moon Has the Leading Hemisphere Black as Tar