Answer: Most likely B, Cost and time.
If I was transporting goods, I wouldn't want to pay more than I need to.
Hope this helped.
Many observations provide a history that one may be able to surmise theories from.
The correct answers are:
1....... C. Furs
2........C. The Qing emperors placed strict regulations on European trade.
3........B. Mao Zedong's Communist party tool control of the government following the civil war.
4........C. Potential adversaries with completely different views.
For the whole thing:
1) B
2) B
3) B
4) B
5) C
6) D
7) C
8) C
9) B
10) C
I might be wrong but I think the answer is
Continental deflection
