参考答案：C

解析：

All else equal, reinvestment risk and price risk move in opposite directions. For example, when interest rates rise, bond prices decrease, but the loss is at least partially offset by decreased reinvestment risk (it is less likely that a bond will be called and bondholders can invest coupon payments at higher yields). When interest rates fall, price risk decreases because the bond value is rising and reinvestment risk increases because it is more likely that the issuer/ borrower will call the security and the bondholder must reinvest coupon payments at lower yields.