这个知识点在哪里？

问题如下：

The composition of broad bond indexes will most likely change due to changes in:

选项：

A.

the maturity mix of issuers only.

B.

the proportion of public versus private issuers only.

C.

both the maturity mix of issuers and the proportion of public versus private issuers.

解释：

C is correct.

Since bonds are issued by many types of issuers, broad bond indexes will reflect changes to bond market composition over time—for example, increases in public versus private issuer debt, longer maturities, and deterioration in credit quality.