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. Examples of "single-currency interest rate swap" and "cross-currency interest rate swap" are: A. fixed-for-floating rate interest rate swap, where one counterparty exchanges the interest payments of a floating-rate debt obligations for fixed-rate interest payments of the other counter party. B. fixed-for-fixed rate debt service (currency swap), where one counterparty exchanges the debt service obligations of a bond denominated in one currency for the debt service obligations of the other counter party denominated in another currency C. both a and b D. none of the above