A U.S. company that has sold its product to a German firm would be exposed to a net exchange gain on the unpaid receivable if the

a.	amount to be paid was denominated in dollars.
b.	dollar weakened relative to the Euro and the Euro was the denominated currency.
c.	dollar strengthened relative to the Euro and the Euro was the denominated currency.
d.	U.S. company purchased a forward contract to buy Euros.