Prior to the work of Lyell and Darwin, the prevailing belief was that Earth is . A) a few thousand years old, and populations are unchanging B) a few thousand years old, and populations gradually change C) millions of years old, and populations rapidly change D) millions of years old, and populations are unchanging

A) a few thousand years old, and populations are unchanging

Explanation:

The works of the Lyell ad the Darwin in explaining the origin of the earth and have a wide range of ideas that the natural process that shaped earth is still operating and gave the concept of the deep time in explains the earth and its environment. Darwin's works on the origin of the species and the natural selection and later published the geology of time of the man and his existence on earth. Believing that earth is a few thousand years old and population was unchanging.