Answer: the rare dropa stone is a modern artifact
Explanation:
stone disks were discovered in some nearby caves. Although they look like modern phonograph records, they are over 10,000 years old
D. is the answer hope this helps
13. Command
14.A
15. B.
16. C
17. I'm not positive on this one. However, I am going to guess run on simply because they're should have not been a and in between.