The answer is: C. suggested that Earth was old enough for evolution to have occurred.
James Hutton’s and Charles lyell’s work shows that earth's age might be several million years old.
From his work, Darwin predicts that evolution among animals that can change their physical attributes is possible. But for the evolution to happen, the species need to be able to survive and create an offspring for several generations. James Hutton’s and Charles lyell’s work basically provide a support for Darwin's theory.
