A resposta é a alternativa B - Aumento da população urbana
In much the same way as Christianity, Islam too gave a belief of a promised better life once life was over. If you cannot pay a man, convince him pay will come once dead.
The Celts were not an unified state but rather a group of numerous tribes that often didn't even speak the same language. They were found all around Europe and were mostly Warriors who build their societies around kinship. They were good farmers and mostly were common people. They didn't have a strong unified state because they lived day in day out, women would give birth to children and men would work on the land and occasionally fight against invaders. There was no spirit of a great Celtic nation.
Rebels attempted to overthrow a dictatorial government.
