Answer:
The Spanish campaign against the Aztec Empire had its final victory on 13 August 1521, when a coalition army of Spanish forces and native Tlaxcalan warriors led by Cortés and Xicotencatl the Younger captured the emperor Cuauhtemoc and Tenochtitlan, the capital of the Aztec Empire.
Explanation:
I'm pretty sure its A. The collapse of Christianity.
More info to answer plz.. there are no intro sentence examples
A.
The congress can override a presidential veto with a two-thirds vote.