Which Equipment Management (EM) standard report documents accountable transactions that occur for a customer's account in a given business day?

The correct choice is the Custodian Action List, which provides a detailed overview of all accountable transactions that take place in a customer's account on a given business day. This report is essential for tracking equipment movements and ensuring that all transactions are properly documented and attributed to the correct custodian. It enhances accountability by allowing staff to quickly review and audit actions related to equipment management within the specified time frame.

While other reports also contain valuable information, they do not specifically focus on documenting accountable transactions for individual customer accounts in the same way. The Accountability Report may provide a summary of who is responsible for what, but it does not detail the daily transactions. The Transaction History Report serves more as a comprehensive record over an extended period, rather than pinpointing daily activity. The Daily Summary Report typically aggregates information at a broader level without the detailed transactional focus specific to custodians.