An increase in literacy,advancement of the arts, and improvements in the legal system
Answer: Merchants from different places exchange one type of coin to another.
Explanation: Moneychangers were in (virtually) every city's harbor. Traders from foreigns country came to moneychangers to change their money to the local currency (AKA local coin) so that the traders could do buisness in that country
The Answer is A to defend polis
Answer: One of the big changes in art was to paint and sculpt subjects realistically. This is called realism and involves a number of techniques that make the subjects and background look like they would in real life. This also meant giving the subjects more emotional qualities.