单选题 An analyst does research about characteristics of U. S. Treasury inflation protection securities (TIPS). Which of the following statements is most accurate? U. S. Treasury inflation protection security (TIPS):
A. has interest payments that are based on an inflation-adjusted coupon rate.
B. has interest payments that are based on an inflation-adjusted principal.
C. may be redeemed at maturity for less than the original par value amount.

【正确答案】 B

【答案解析】[解析] 对于通货膨胀保护证券，如果通货膨胀率上升，债券的本金将上调；如果通货膨胀率下跌，债券的本金将下调，所以选项A错。通货膨胀保护证券最后的本金调整结果可能会低于其面值，但到期赎回时，赎回价格不会小于其面值，如果调整后的价格低于其面值，则到期赎回时也是按照面值来进行的，所以选项C错。