All else equal, which of the following would have the least interest rate risk?

Question options:

	A 3-year fixed rate note that yields 2.5%.
	A 5-year floating-rate note that floats with LIBOR, presently at 2.5%.
	A 5-year fixed-rate note that yields 4%.
	A 20-year fixed-rate note that yields 5%.
	A 30-year zero-coupon bond that yields 5.5%.