问题
单项选择题
The refunding provision found in nonrefundable bonds allows bonds to be retired unless:（）
A. the funds come from the sale of new common stock.
B. the funds come from a lower cost bond issue.
C. market interest rates have increased substantially.
答案
参考答案：B
解析：
Refunding from a new debt issue at a higher interest rate is not prohibited, however their purchase cannot be funded by the simultaneous issuance of lower coupon bonds.