Paleontologists are studying a specific type of fossil from an organism found in the bottom rock layer of a cliff. Later they notice the same type of fossil in a higher layer on the same cliff. The rock layers are undisturbed – no folding or faulting has taken place. Which of the following is the BEST explanation for why fossils of this organism can be found in multiple rock layers in this cliff?
A. This particular type of organism lived for a long period of time in the same area
B. The cliff has many faults that have broken down the rocks and moved the fossils
C. This particular type of organism was present in multiple locations on Earth
Why did you choose this answer?