When will a fossil be used in finding the absolute age of rocks?
A: If it existed for a long period of time and in a small area
B: if it existed for a limited period of time and in a small area if it existed for a limited period of time and in a small area
C: if it existed for a limited period of time and in a wide area if it existed for a limited period of time and in a wide area
D: if it existed for a long period of time and in a wide area if it existed for a long period of time and in a wide area