NO.PZ2023120801000008
问题如下：
Sinking funds are most likely to:
选项：
A.Reduce credit risk
Never allow issuers to retire more than the sinking fund requirement
Always reduce the outstanding balance of the bond issue to zero prior to maturity
解释：
Correct Answer: A
Sinking funds are designed to reduce default risk (the crisis-at-maturity). If present in the indenture, sinking funds must be met. They are not optional. Some sinking funds allow for accelerated sinking funds provisions. Some sinking funds pay only part of the outstanding balance, leaving a balloon payment at maturity.
看题意sinking fund不是沉没成本的意思，这个知识点对应的讲义部分老师可不可以截个图
