What diplomatic policy by Gorbachev ensured the Soviet Union would fall? a. He spent even more money on the Soviet military, which led to its fall.
b. He opened up the nation to more democratic ideas and would not stop them from spreading.
c. He pushed for less nuclear weapons and the U. S. took the nation over.
d. He closed down trade with non-communist nations, which crippled the Soviet economy.

I think that the answer may be B

Explanation:

I searched it up

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.