单选题 An analyst does research about various risks of investing in bonds. Investors in U. S. Treasury Inflation-Protected Securities are most likely to be exposed to:
A. credit risk.
B. reinvestment rate risk.
C. purchasing power risk.

【正确答案】 B
【答案解析】[解析] 美国政府的通货膨胀保护证券信用极好,所以没有违约风险。同时,由于通货膨胀保护证券的本金会随着通货膨胀率调整,所以大幅度减少了购买力风险。但通货膨胀保护证券所拿到的利息会面临再投资风险。