The most appropriate IS audit recommendation for a bank that wants to outsource a system to a cloud provider residing in another country is to ensure the provider's internal control system meets bank requirements. This is because the cloud provider will be handling the bank's data, so it is important to ensure that the provider has appropriate controls in place to protect the data and to ensure its integrity. Additionally, the provider should have policies and procedures in place to ensure the security and privacy of the data, as well as to ensure compliance with applicable laws and regulations. For more information, please refer to the ISACA CISA Study Guide section 4.13.2.2.