Will the following be suppliers or demanders of U.S. dollars in foreign exchange markets? a. A U.S.

Question:

Will the following be suppliers or demanders of U.S. dollars in foreign exchange markets?
a. A U.S. tourist in Latin America.
b. A German foreign exchange trader who believes that the dollar will fall.
c. A U.S. foreign exchange trader who believes that the dollar will fall.
d. A Costa Rican tourist in the United States.
e. A Russian capitalist who wants to protect his wealth from expropriation.
f. A British investor in the United States. Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...