What Was the Primary Difference in the Political Situation Between

What was the primary difference in the political situation between the Mesoamerican and Andean zones following the breakup of the classical states?

A) In Mesoamerica there was no real political decline as new peoples simply took over the institutions of their predecessors.
B) In the Andean zones a number of relatively large states continued to be important, rather than the breakdown of power that was typical of Mesoamerica.
C) The Andean political experience lacked the militaristic overtones that accompanied the breakdown of power in Mesoamerica.
D) The transition of power that took place in the Andean zone was accomplished by invasion from outside the region.