问题如下：
Which of the following cash flow is least likely to be received by the investors of the credit card receivable-backed securities during the lockout period?
选项：
A.Finance charges
B.Fees
C.Principal
解释：
C is correct.
For credit card receivable-backed securities, if the loans are in the lockout period, the cash flows paid out to security holders are based only on finance charges and fees.
老师，意思是不是说在the lockout period期间，credit card receivable-backed securities 的投资人只收到利息，这个利息是由charge罚款和其他fee构成的？
