Which empire was the largest in both Americas before the arrival of the Europeans?

Question

A. Inca
B. Aztec
C. Maya
D. Cherokee

I'm not sure if A or D but I think it is one of the two. Can anyone help me?????

Answer 1

A.

http://en.wikiversity.org/wiki/Introduction_to_US_History/United_We_Stand:The_History_of_the_United_States_of_America/America_Before_Columbus