问题如下：
A fixed-income security is described as a capital market security, so the security is classified by:
选项：
A.Type of issuer.
B.Original maturity.
C.Credit quality.
解释：
B is correct.
Securities with original maturities greater than one year are referred to as capital market securities while securities with original maturities of one year or less are classified as money market securities.
你好，这题不太理解，方便解析下。
