I believe your answer is the Aztecs.
Answer:
D. Ethnic cleansing in Bosnia led to a military response from international forces, but ethnic cleansing in Rwanda did not
Explanation:
The genocides in Bosnia and Rwanda are part of the numerous genocides that took place in the past several decades. The genocide in Bosnia was initiated by Serbian nationalist, and it was toward the Muslims and the Croatians. The international community did reacted though to stop it, and sent its military forces in order to put things under control. The genocide in Rwanda though took another course. The Hutu started to perform genocide over the Tutsi minority, but the international community was hesitating should it react or not, if it does in which way, and while it was thinking the genocide was going on and on. Luckily for the Tutsi people, they had their own military forces that were well equipped, so they managed to stop the aggression form the Hutu before they made a full scale genocide.
Horace Mann invented school and what is today the United States' modern school system. Horace was born in 1796 in Massachusetts and became the Secretary of Education in Massachusettes where he championed an organized and set curriculum of core knowledge for each student.
A is the answer to the question