Which of the following statements about interest rate swaps is/are true? I - The notional principals are exchanged by the counterparties at the end of an interest rate swap's life II - The differences in how credit risk is priced gives rise to comparative advantage in borrowing through swaps. III - When an intermediary is involved in a swap, the intermediary assumes no counterparty risk for either end of the transaction IV - It is possible for both counterparties to benefit from a swap even if one counterparty has the absolute advantage in all types of borrowing a. I, II, III, and IV b. II and IV c. III, III, and IV d. I, II, and IV e. II and