问题如下：
Which of the following statements related to secondary bond markets is most accurate?
选项：
A. Newly issued corporate bonds are issued in secondary bond markets.
B. Secondary bond markets are where bonds are traded between investors.
C. The major participants in secondary bond markets globally are retail investors.
解释：
B is correct.
Secondary bond markets are where bonds are traded between investors. A is incorrect because newly issued bonds (whether from corporate issuers or other types of issuers) are issued in primary (not secondary) bond markets. C is incorrect because the major participants in secondary bond markets globally are large institutional investors and central banks (not retail investors).
这道题没懂，二级市场上有institutional cliens and retail clients 选项B是零售客户，选项C 不对嘛。有什么依据呢
