题目
Which type of call bond option offers the greatest flexibility as to when the issuer can exercise the option?
选项
A.A Bermuda call
B.A European call
C.An American call
答案
C
解析
： C is correct. An American call option gives the issuer the right to call the bond at any time starting on the first call date. ： C是正确的。美式看涨期权赋予发行人在第一个看涨日开始的任何时间赎回债券的权利。