Explanation

Credit card receivable-backed securities have a unique structure compared to other asset-backed securities. Here's why option A is correct:

1. Lockout Period: During the lockout period (typically 1-2 years), only interest payments are distributed to investors, while principal payments are reinvested in additional receivables.

2. After Lockout Period: Once the lockout period ends, principal payments are periodically distributed to investors rather than being reinvested. This is known as the 'amortization period' or 'controlled amortization period'.

3. Why not other options:

   • Option B (reinvested in additional receivables): This occurs during the lockout period, not after.
   • Option C (distributed as a balloon payment): Credit card ABS typically use controlled amortization rather than bullet/balloon payments. The principal is paid down gradually over the amortization period.

4. Structure Details:

   • Credit card receivables are revolving assets with no fixed maturity
   • The lockout period allows the trust to build up sufficient receivables
   • After lockout, principal is paid down according to a predetermined schedule
   • This structure helps manage prepayment risk and ensures stable cash flows

Key Concept: Credit card ABS have a revolving period (lockout) followed by an amortization period where principal is distributed periodically to investors.