问题如下图：
选项：
A. 
B. 
C. 
D. 
解释：
第一句话mei没理解，lower rate怎么又变高了
NO.PZ2016082405000089 Whiof the following statements scripart of the risk mitigation process for a collateralizeobligation (C)? I. fault risk is restructurein sua wthpreviously lower-rateissues cre-formulateinto highly rateinstruments. II. The equity tranche hno certain return anbears the highest level of fault risk. I only. II only. Both I anII. Neither I nor II. C The fault risk in a C is structurethrough various tranches in sua wtha pool of assets thwere onlower ratecoulrateafter the securitization process. The equity tranche is the most junior tranche. Therefore, it offers the highest return potentibut with no certain return. The equity tranche also bears the highest level of fault risk. fault risk is restructurein sua wthpreviously lower-rateissues cre-formulateinto highly rateinstruments. 这是什么意思？不懂
NO.PZ2016082405000089 Whiof the following statements scripart of the risk mitigation process for a collateralizeobligation (C)? I. fault risk is restructurein sua wthpreviously lower-rateissues cre-formulateinto highly rateinstruments. II. The equity tranche hno certain return anbears the highest level of fault risk. I only. II only. Both I anII. Neither I nor II. C The fault risk in a C is structurethrough various tranches in sua wtha pool of assets thwere onlower ratecoulrateafter the securitization process. The equity tranche is the most junior tranche. Therefore, it offers the highest return potentibut with no certain return. The equity tranche also bears the highest level of fault risk. 只是说有可能达不到所以不能说是no certain return吧
