Why did a money economy begin to replace the barter economy in the high middle ages?

as wars halted trade, merchants found new work metalsmithing or creating coins.

as trade expanded to cover greater distances, a unit of exchange became more important.

eastern merchants banded together to reject the barter economy in europe.

western merchants were no longer willing to negotiate trade agreements with eastern nations.

the correct answer is "c: merchants" and "e. soldiers".

the song dynasty was known as the first government in the world to introduce paper currency. it was also the first chinese government which established a permanent standing navy. finally, the first compass was introduced during this period of government.

all of these innovations heavily affected commerce in a positive way. printed money dynamize commerce within the borders of the empire due to an easier way to quantify value during the trade. the introduction of the compass trade routes to be faster. finally, the introduction of a standing navy regulate trade routes.

regarding military affairs, gunpowder was created during this period. this was a tremendous improvement that was widely utilized by the military in order to innovate in the manufacturing of weapons.