Which of the following states that natural processes occurring today are constant and are the same processes that occur in the past

The answer to the question is, Principle of uniformity

The principle of uniformity, otherwise known as Uniformitarianism, is a doctrine or principle in geology which posits that the geologic processes of the Earth acted in the same manner and that these natural processes occur with essentially the same intensity in the past as they do in the present. According to this principle, such uniformity is sufficient to account for all geologic change.

"pacesetter of the south," comma inside the quotes