I believed the answer is 4. It makes sense because, after the agricultural revolution, people switched from hunting and gathering to crops and needed necessary tools to do that. Number 1 doesn't really make sense because in the Classical Era, they created religions early, so it's not it. B doesn't really make sense and 3 is wrong because they still used animals.
B
monroe doctrine stopped European colonization in the western hemisphere
Answer:Bishops and priests were arrested, tortured, and martyred. In 304, Rome decreed that all Christians sacrifice to the pagen gods or face death. Crowds in Roman arenas shouted, “Let there be no Christians.” Galerius grew disheartened when he saw his efforts had failed to stamp out the Christian religion.
Explanation: hope this helps!
The Assassination of Archduke Franz Ferdinand