4. Christian Company Limited, a U.S.-based software company, just purchased a Korean company that creates software to detect computer viruses. The purchase price was Won 11,000 million. Won 3,000 million has already been paid, and the remaining Won 8,000 million is due in six months. The current spot rate is Won 1,110/$, and the 6month forward rate is Won 1,180/$. The six-month Korean won interest rate is 15% per annum, the six-month US dollar rate is 3% per annum. Christian can invest at these interest rates or borrow at 2% per anrum above those rates. A six-month call option on won with a 1200/$ strike rate has a 1.0% premium, while the six-month put option at the same strike rate has a 2:4% premium. Christian Company Ltd. can invest at the rates given above or borrow at 2% per annum above those rates. Christian's weighted average cost of capital is 10%. Compare at least four alternate ways that Christian Company might deal with its foreign exchange exposure. What do you recommend and why