下列物质中含有氧分子的是（　　）

A．二氧化锰

B．高锰酸钾

C．空气

D．氯酸钾

Which of the following statements about how the features of a bond impact interest rate risk is FALSE （）

A. Bond price movements depend upon the direction and magnitude of changes in interest rates.

B. All else equal, a longer-term bond is more sensitive to interest rates than a shorter-term bond.

C. An inverse relationship between interest rates and bond prices means that the greater the change in interest rates, the less the change in fixed-coupon bond prices.