问题如下图：
选项：
A. 
B. 
C. 
NO.PZ201712110200000308 问题如下 Whiof the following conclusions regarng the bon in Exhibit 4 is correct? A.Bon5 is relatively cheaper thBon6. B.Bon7 is relatively cheaper thBon6. C.Bon8 is relatively cheaper thBon7. B is correct. A bonwith a larger option-austespre(OAS) ththof a bonwith similcharacteristiancret quality means ththe bonis likely unrprice(cheap). Bon7 (O85 bps) is relatively cheaper thBon6 (O65 bps).C is incorrebecause Bon8 (CCha lower cret rating thBon7 (anthe Oalone cannot usefor the relative value comparison. The larger O(105 bps) incorporates compensation for the fferenbetween the B anCboncret ratings. Therefore, there is not enough information to a conclusion about relative value. 就是对于同一评级的债券来说，OAS越大，这个债券价格越低，就是被低估；反之OAS越小，这个债券价格高，被高估？如果我说的不对，还请老师指正。
NO.PZ201712110200000308
这道题没想明白的点是，评级低的加上oas又高的债券难道还不一定比评级高的oas小的债券便宜吗？(我知道要控制变量比较，但我觉得这个问题是一定的了)
这道题没想明白的点是，评级低的加上oas又高的债券难道还不一定比评级高的oas小的债券便宜吗？(我知道要控制变量比较，但我觉得这个问题是一定的了)
