Question

Which of these choices is the best definition of absolute dating?

A. determining the age of a rock layer by studying the fossils present
B. finding the age of an object compared to other objects
C. measuring the age of an object in years using any method
D. determining the amount of a radioactive isotope in an object​

Answer 1

I think it's A because the sedimentary rock is also involved in finding the fossils to determine their phenotype and their roots.