The diagram below shows fossils discovered in four different layers of sedimentary rock 1,2,3 and 4
Analyze the diagram and determine which statement about the fossils is correct. Select all that apply.
A. All the fossils are of the same age.
B. The relative ages of the fossils cannot be determined.
C. The fossils in rock layer 4 are older than those in layer 1.
D. The fossils in rock layer 3 is younger than layer 2.
E. The fossils in rock layer 2 are younger than those in layer 3.