Which of the following is NOT a bank's duty to the customer?

A bank’s primary duties to its customers center around effectively managing their accounts and facilitating transactions. Honoring payment orders is fundamental; it ensures that when a customer instructs the bank to make a payment, the bank fulfills that request in accordance with the customer’s account balance and other relevant terms. Similarly, crediting payment orders is essential, as it involves the bank correctly processing incoming payments to the customer's accounts.

Providing statements of transactions also falls under the bank’s responsibilities. Regular statements give customers an overview of their financial activity, helping them track their spending and manage their finances effectively.

In contrast, informing creditors of all transactions is not a standard duty of a bank. While confidentiality is a priority for banks, unless there is a legal requirement or specific consent from the customer, banks do not disclose transaction details to third parties. This protection of customer information underscores the importance of privacy and data protection in banking relationships, distinguishing this option from the core duties of honoring payments, crediting transactions, and providing statements.