why is poverty point considered an extraordinary archaeological find ?

Question

A)it is considered evidence if prehistoric life in Louisiana
B)many artifacts were found on this site
C)the earthwork was built with 30 million loads of dirt hauled by people
D)it was evidence of a group that traded after agricultural practices became popular

Answer 1

http://www.google.com/search?q=poverty+point+archaeology&oq=%22poverty+point%22+arch&aqs=chrome.1.69i57j0l5.7582j0j7&sourceid=chrome&ie=UTF-8