Which of the following statements is false? Select one:

a. Fixed-for-floating currency swaps and fixed-for-fixed currency swaps both avoid exchange rate risk.

b. Coupon swaps and basis swaps are both types of interest rate swaps.

c. Forward forwards and forward rate agreements both protect against interest rate risk.

d. Interest rate swaps and currency swaps both involve the exchange of interest rate payments and principal amounts.

e. The benefits of interest rate swaps and currency swaps increase as arbitrage opportunities increase.