The Americans hostility towards the clergy, adherents, and the Catholic Church during the 1800s was rooted to their desires to maintain the white, Protestant nation. The reform even led to religious discrimination and violence. Therefore, the answer to this question is most probably letter D.
According to historical perspective, the statement that provided more prisoners for Aztec human sacrifice rituals and contributed to some native cultures allying with the Spanish against the Aztecs is "<u>Aztec conquest of neighboring territories."</u>
When the Aztec conquered neighboring territories, usually through wars, they took war captives from these territories, including men, women, and children.
Some of these war captives were taken as slaves, while some were used as a human sacrifice by the Aztec's religion or government.
However, due to these conquests, many neighboring territories were not happy about the Aztecs. Thus, they quickly form alliances with the Spanish invaders to conquer the Aztecs.
Hence, in this case, it is concluded that the correct answer is option A. "Aztec conquest of neighboring territories."
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These changes impacted the way we teach and see history for years to come. In events such as the Murder of Nanking (committed by Japan), the horrors committed in the Polish termination camp (Auschwitz), and the Holocaust Twin experiment, many people were murdered and faced many cruelties. Now we study the works of Hitler, Stalin, and many others like them with caution. Though some people still believe that what Hitler did was correct (neo-nazis) or that the entire holocaust was completely made up (this is a false statement), it was a real event and had cause many people pain, and lots of people lost loved ones.