Refer to this graph to answer the following four questions. Graph. Refer to the text description following the image. This is a graph of the foreign exchange market. The y-axis is labeled Exchange Rate (euros per dollar), and the x-axis is labeled Quantity of dollars traded. There are two parallel, downward-sloping demand curves, labeled D1 and D2. D1 is above and to the right of D2. There are also two parallel, upward sloping supply curves, labeled S1 and S2. S1 is above and to the left of S2. These four lines intersect at four points. Point A is the left-most point, which is the intersection of S1 and D2. Point B is the uppermost point, which is the intersection of S1 and D1. Point C is the right-most point, where S2 and D1 intersect. And point D is the lowest point, where S2 and D2 intersect