The diagram below shows three fossils in layers of rocks. Picture shows three layers of rocks. Top most layer shows the fossil of Organism C, middle layer shows fossil of Organism B, and bottom layer shows fossil of Organism A.

Which of these conclusions is most likely correct about the organisms whose fossils are shown in the diagram? (4 points)

a
Organism A evolved from Organism B

b
Organism A evolved from Organism C

c
Organism B evolved from Organism C

d
Organism B evolved from Organism A