单选题 Which of the following statements regarding mortgage-backed securities (MBS) and collateralized mortgage obligations (CMOs) is most likely correct?

A、 MBS are created from CMOs.
B、 Creating CMOs does not reduce the overall prepayment risk of a mortgage pass through security.
C、 The prepayment option of an MBS benefits the security holder.

【正确答案】 B

【答案解析】Creating a CMO can redistribute the prepayment risk among the tranches, but it does not alter the overall prepayment risk of a mortgage passthrough security. CMOs are created from MBS.