The duration measure is supplemented with the convexity measure, which captures the ________ of a bond prices. As the yield to maturity increases the convexity of a bond typically _______. Group of answer choices A. credit risk; decreases (i.e. flattens) B. credit risk; increases (i.e. steepens) C. curvature; decreases (i.e. flattens) D. curvature; increases (i.e. steepens)