题目
Support tranches are most appropriate for investors who are:
选项
A.concerned about their exposure to extension risk.
B.concerned about their exposure to concentration risk.
C.willing to accept prepayment risk in exchange for higher returns.
答案
C
解析
： C is correct. The greater predictability of cash flows provided in the planned amortization class (PAC) tranches comes at the expense of support tranches. As a result, investors in support tranches are exposed to higher extension risk and contraction risk than investors in PAC tranches. Investors will be compensated for bearing this risk because support tranches have a higher expected return than PAC tranches. ： C是正确的。计划摊销类别（PAC）层级中提供的现金流的更大可预测性是以支持层级为代价的。因此，支持层级的投资者比PAC层级的投资者面临更高的扩张风险和收缩风险。投资者将因承担这一风险而得到补偿，因为支持层级的预期回报率高于PAC层级。