The age of the Earth can be estimated in many ways. Which statement below is most accurate (remember that uniformitarian calculations involve looking at the thickness and type of sedimentary rocks, and similar things, but do NOT include radiometric dating or counting of annual layers)?

A) Uniformitarian calculations show that the Earth is about 100 million years old.
B) Uniformitarian calculations show that the Earth is more than about 100 million years old, and radiometric techniques tell us how much older.
C) Uniformitarian calculations show that the Earth is more than about 100 million years old, and we have no way to estimate how much older.
D) Uniformitarian calculations show that the Earth is more than about 1 billion years old.
E) Uniformitarian calculations show that the Earth is 4.6 billion years old