Suppose you buy a coupon bond with 5% yield. The maturity of this bond is 11 years, the modified duration of this bond is 8 years, and the Macaulay duration of this bond is 9 years. Interest rates have increased after your purchase. If you want to earn a return higher than 5%, when should you sell the bond?

	A.	in 8 years
	B.	in 9 years
	C.	in 7 years
	D.	in 10 years