Nilex Pty Ltd is a manufacturing company based in Australia that imports materials from the U.S. It expects a large shipment of materials six months from today and is concerned about movements in the AUD/USD exchange rate. The current exchange rate is USD1=AUDO.7800 To hedge its foreign exchange exposure Nilex could either purchase a 6- month (call vs put) option on USD with a strike price equal to the 6-month forward exchange rate or enter a forward exchange contract to (purchase vs sell) USD at the current forward exchange rate. If the USD (appreciates vs depreciates), then choosing the option to hedge generally results in a more profitable outcome. Select one: O a. put; purchase; appreciate O b. put; purchase; depreciates O c. call; purchase; appreciate O d. call; purchase; depreciates