Answer:
B. an absolute age only
Step-by-step explanation:
An absolute age is the exact numerical age of an object. Absolute ages are usually obtained from dating of the object using the radioactive materials they contain. The radioisotopes in the objects acts as the clock in it. If one says an object is 9 million years old, it is an absolute age.
Relative dating depicts age based on the occurrence of an event in relation to another. If one says, the age of an object is between the Jurassic and Triassic, it is a relative age.
In science, both absolute and relative dating are related.