I had this before I'm pretty sure its D
My option is that the closer they are to their sources of energy the more they produce and more materials to complete their product.
Genghis khan is the founder and the first ruler during the Mongol period in 13 Century BC. Mongol invasions had great impact on Europe during medieval period.
The military powers of Mongolians were great and they were the first to conquer most of the western world. The wide spread bubonic plague which was planned by Mongols resulted in a genocide when huge population of Europe was killed.
After his conquer of Eurasia there was peace and he initiated the activity of trade and business in the Silk route.
Answer:
the answer is C. Germany was broken up into smaller nations