单选题 All else being equal, the floor on a floating-rate security is most likely to benefit the:
A. issuer if interest rates fall.
B. bondholder if interest rates fall.
C. bondholder if interest rates rise.

【正确答案】 B

【答案解析】[解析] 对于浮动利率证券的利率底，意味着当利率下跌低于利率底时，该浮动利率证券还是以利率底来支付利息，锁定了债券持有人获得利息回报的最低下限，对于债券持有人是有利的。