100 points! What a good topic about the history of economics, excluding the Silk Road, or the recovery of Europe's economy?

Economy and Trade?

Explanation: The Silk Road was a network of trade routes which connected the East and West, and was central to the economic, cultural, political, and religious interactions between these regions from the 2nd century BCE to the 18th century.

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )

the name of the theory is landmass theory.