Which of the following methods is least likely to help Alisha determine the age of sedimentary rock layers in her backyard?



A. Apply radiometric dating to determine the amount of radioactive isotopes in each rock layer.



B.Identify index fossils in sedimentary rock that have lived in a particular time in Earth’s history.



C. Analyze seismic diagrams to determine how radioactive elements break down into stable elements.



D. Use relative dating techniques to determine how individual fossil groups are related to specific rock layers.

ILL GIVE BRAINLIEST!11