问题如下图：
选项：
A. 
B. 
C. 
解释：
A选项包含公司债和ABS为什么不对？
NO.PZ2015122802000064问题如下aggregate fixeincome inx:A.comprises corporate anasset-backesecurities.B.represents the market of government-issuesecurities.C.csubvimarket or economic sector to create more narrowly fineinces. is correct.aggregate fixeincome inx csubvimarket sector (government, government agency, collateralize corporate), style (maturity, cret quality), economic sector, or some other characteristic to create more narrowly fineinces.考点债券指数aggregate fixeincome inx就是bromarket inxes，简单来说就是债券的大盘指数包括了按各种维度划分的债券。所以A和B错在它说的太片面了。 Aggregate inxes csubvimarket sector (government, government agency, collateralize corporate); style (maturity, cret quality); economic sector, or some other characteristic to create more narrowly fneinxes. c是什么意思能详细说明一下嘛？以及为什么选c
NO.PZ2015122802000064 A为什么不对
老师 aggregate fix income inces包括什么 能不能中文一下
老师您好，请问B为何不对？谢谢
