Question

Australia exports more goods to China than any other country it trades with. These goods include such things as iron ore, coal, crude petroleum, and wool. In turn, Australia imports goods like computers, cars, and refined petroleum from China. This is an example of how _______ promotes trade.
a tariff
a quota
specialization
productivity

Answer 1

I believe it is Tariff

Answer 2

If your reading assignment says tariff, it must be right.