Answer: the gold solidus of the Byzantine empire (Eastern Rome).
Explanation: There were lots of trades with gold, going into the Byzantime Empire, {used to be rome}
<span>C. To establish trade policy between the member countries and the rest of the world
Hope this helps. c:</span>
It was "The Farmers' Alliances."
Supply is how much there is of a product. Demand is how much the product is wanted or needed by consumers. When supply is low, & demand for the product is high, it forces the price to go up.