Please offer assistance for the attached foreign exchange word problem. thank you!

Foreign Exchange Risk and the cost of Borrowing Swiss Francs. The chapter demonstrated that a firm borrowing in a foreign currency could potentially end up paying a very different effective rale of interest than what it expected Using the same baseline values of a debt principal of SF1 5 million a one-year period an initial spot rate of SF15200/5, a 5 242% cost of debt, and a 35% tax rate what is the effective after-tax cost of debt for one year for a US dollar-based company if the exchange rate at the end of the period was a. SF1 5200/$ b. SF1 4400/5 C. SF1 3640/5 d. SF1 6660/S in