Which of the following best describes cardholder data functions handled in SAQ A?

The description of cardholder data functions in SAQ A focuses on environments where the merchant does not store, process, or transmit any cardholder data but instead relies on third-party compliant service providers to handle those functions. This aligns with the requirements for SAQ A, which is specifically designed for merchants who fully outsource all payment processing to a PCI DSS-compliant third-party service.

Merchants using SAQ A typically do not collect or exchange cardholder information directly, which means they have reduced exposure to the risks associated with cardholder data. This understanding emphasizes the importance of working with trusted service providers to ensure that all aspects of cardholder data handling are managed securely and in compliance with PCI DSS standards.