I would say D hope this helps thank you:)
Radiocarbon dating is the method of dating bone that would yield the most accurate results. This kind of dating technique is used for determining the age of any object that contains organic materials in it. This is the method that was developed by a person named Willard Libby in the late 1940s. Libby got the Nobel Prize in the year 1960 for his great work.
The answers are 7. a 8. d 9. c
Ports in major cities where they will be sent to work.