Sentence Correction (SC) | Between 14,000 and 8,000 b.c.

Between 14,000 and 8,000 b.c. the ice cap that covered northern Asia, Europe, and Americabegan to melt, uncovering vast new areas that were to be occupied by migrating peoples moving northward.

A.began to melt, uncovering vast new areas that were to be occupied
B.began melting, to uncover vast new areas to be occupied
C.began, by melting, to uncover vast new areas for occupation
D.began, after melting, uncovering vast new areas which are to be occupied
E.would begin to uncover, through melting,
...

---