NO.PZ2018062012000004
问题如下：
According to a partially amortized bond, the last term cash flow has an extral amount than the early terms' cash flows. The extra cash flow is classified as:
选项：
A. principal repayment.
B. waterfall.
C. balloon payment.
解释：
C is correct.
A partially amortized bond also makes fixed periodic payments until maturity, but only a portion of the principal is repaid by the maturity date. So, the balloon payment is required at maturity to retire the bond's outstanding principle amount.
Balloon payment的形成不是也是因为本金的归还吗
