Lyell's Principles of Geology Was the First Text to Give

Lyell's Principles of Geology was the first text to give evidence that the Earth

A) was created a few thousand years ago.
B) did not change over time.
C) was actually much younger than previously believed.
D) was undergoing slow and continuous cycles of erosion and uplift.
E) was undergoing different process today compared to what occurred in the past.