Please answer the following question: Fact 1: Radioactive dating is used to determine the age of fossils.  Fact 2: Carbon 14 Dating Perhaps the best known radioactive dating is based on .  Given the two facts above, answer the question "The age of a fossil can sometimes be determined by what method?" with the following options:  - microscope  - an electron microscope  - fossilized electrons  - fossilized gamma rays  - Carbon fibers  - carbon 14 dating  - chemical equations  - Physical weathering
A:
carbon 14 dating