What is the best explanation for large smooth regions on Sat

What is the best explanation for large smooth regions on Saturn\'s moon Enceladus?

A. Enceladus is so small that it never gets hit by meteors.

B. Water from sub-surface oceans can escape through geysers to refresh the surface.

C. Orbital resonances with Titan and Mimas prevent meteors from hitting Enceladus.

D. Saturn\'s magnetic field prevents meteors from hitting Enceladus.

E. Saturn\'s rings protect the moon from impacts.

Solution

answer is E