Where ______ exists，two trading partners are both able to share

Where ______ exists，two trading partners are both able to share in the gains from trade.
A、International trade
B、absolute advantage
C、comparative advantage
D、manufacturing and technology
【正确答案】：C
【题目解析】：Where comparative advantage exists，two trading partners are both able to share in the gains from trade.参见教材P70。