When consumption of a good is nonrival and nonexcludable, the good is a

Everything else the same, in the foreign exchange market which of the following increases the demand for U.S. dollars and shifts the demand curve rightward?

A) The U.S. interest rate rises. B) The U.S. exchange rate falls. C) The Japanese interest rate rises. D) The U.S. exchange rate rises. E) The expected future exchange rate falls.

In the above figure, the line represented by the "2" is the

A) average fixed cost. B) average variable cost. C) total cost. D) average total cost.