Which one of the following bonds is most sensitive to interest rate changes?

	A.	A 5% bond with 7 years to maturity and yield to maturity of 10%.
	B.	A zero coupon bond with 1 years to maturity and yield to maturity of 10%.
	C.	A 5% bond with 7 years to maturity and yield to maturity of 8%.
	D.	A 10% bond with 7 years to maturity and yield to maturity of 10%.
	E.	A 5% bond with 6 years to maturity and yield to maturity of 8%.