How does the modern era differ from the post-classical era?

The modern era has seen the rise of powerful imperial states, while the post-classical era was characterized by smaller city-states. C. The modern era is characterized by global exchange of ideas and goods, while this kind of exchange was mostly regional during the post-classical era

Explanation:

The modern era is characterized by global exchange of ideas and goods, while this kind of exchange was mostly regional during the post-classical era.

The post-classical era, the world's most powerful states were in in Asia and also the geographic area. within the epoch, power shifted to continent. Life was completely different in several| numerous eras. But maybe give specific eras for a far better result.

mass production/ assembly line production

the indians crossed artificial boundaries, setting the stage for conflict