The diagram below represents a series of rock layers from a single location. Each different type of shape shown in the layers represents a fossil of a different species.

Suppose the blue star represents a certain fish species. When did this species go extinct at this location?
A.
at the end of the Jurassic
B.
at the end of the Cretaceous
C.
at the end of the Triassic
D.
during the Permian