How did nomads in Asia and the Middle East impact Silk Road trade? A. Controlled silk production

B. Controlled gold and salt mines

C. Connected other groups without direction interaction

D. Isolated civilizations from each other other

C

Explanation:

A would not be true because how would people traveling affect the  ammount   of silk a worm is producing?

B would be not true because they are nomads.

D would be not true because how would you isolate them when you carry goods from their lands?

explanation:

i think it is in quadrant 4.

the five year plans were part of a command economy. there was little choice in what would be emphasized for the current 5 year period.

the answer to democracy or totalitarianism is a bit harder. in stalin's time, russia was totalitarian. now that's not entirely true. putin has moved towards at least the boundary.

the answer is c. hope this