Charles Lyell's 1865 Book the Geologic Evidences for the Antiquity

Charles Lyell's 1865 book The Geologic Evidences for the Antiquity of Man was important because it:

A) documented the fact that humans had lived with now extinct animals in the distant past.
B) provided evidence that humans had been on the earth for a far shorter time than other scholars of the time suggested.
C) argued for an extremely young age of the earth (not more than 6000 years old) .
D) finally showed that the "ancient ax heads" discovered in river gravels were nothing more than naturally fractured river cobbles.