问题如下：
LIBOR, a reference rate, can be used to determine
选项：
A. the spread of the floating rate bond
B. the coupon rate of the floating rate bond
C. the coupon payment frequency of the floating rate bond
解释：
B is correct.
A floating-rate bond referred by LIBOR can determine its coupon rate by adding a spread to the LIBOR.
请问能解释下c是什么意思吗？
