which method of dating relies on the remains of once - living organisms? rate of sedimentation fossil…

Brief Explanations:

Radioactive dating uses the decay of radioactive isotopes in the remains of once - living organisms to determine age. Fossil comparison is about relative dating based on the sequence of fossils but not directly on the radioactive properties of remains. Rate of sedimentation and law of superposition are related to rock - layer dating rather than properties of once - living organisms.

Answer:

C. radioactive dating