A company just announced a new stock issue, the proceeds of which will be used to pay down debt. The announcement of decreasing leverage caused the yield spread on the companys existing 10-year bonds to decrease by 50 basis points. If the bonds have a modified duration of 7.53 and convexity of 69.9, the percentage change in the bonds value is closest to:

A)3.85%.

B)4.20%.

C) 4.15%.