The Archeological Evidence of the Presence of Ball Courts in Cahokia

The archeological evidence of the presence of ball courts in Cahokia is an indication that this Amerindian center

A) had had contact with the Northmen in the ninth century.
B) had a strong interest in recreational activities.
C) were deeply involved in agriculture.
D) probably had contacts with Mesoamerican civilizations.
E) were colonized by the Phoenicians.