Astroarchaeologist Anthony Aveni Believes That the Ceremonial Site at Cahokia

Astroarchaeologist Anthony Aveni believes that the ceremonial site at Cahokia, Illinois, was used by ancient rulers to

A) schedule yearly rituals that mark the cycles of the agricultural year.
B) determine the positions of the moon and stars.
C) undertake ritualistic self-mutilation and blood-letting.
D) invest shamans and other spiritual leaders with authority.