NO.PZ202305230100009602
问题如下：
The weighted average coupon payment is closest to:
选项：
A.
3.47%
B.
3.50%
C.
3.61%
解释：
The correct answer is A.
The weighted average coupon payment is calculated as the value of each tranche’s coupon rate weighted by the principal value of that tranche as a percentage of the total value of all tranches:
最后一个括号里的分母是typo吧，应该是83000000？
