In the Early Sixteenth Century,which of the Following Contributed to the Aztecs

In the early sixteenth century,which of the following contributed to the Aztecs' constant warfare?

A) The Aztecs' neighbors were unwilling to trade with them,requiring warfare to secure highly desired luxury items such as rare quetzal feathers.
B) The Aztecs wanted to extract tribute and take war captives to sacrifice to their gods.
C) The Aztecs and their neighbors were engaged in a bitter struggle to obtain control of the Yucatan Peninsula.
D) The Aztecs' neighbors attempted to choke off their access to the sea,denying the Aztecs coastal trade.