Which solution should be used to determine the latest restorable time for an Amazon distributed relational data store service?

Using the AWS CLI command that describes database instances is effective for determining the latest restorable time for an Amazon distributed relational data store service such as Amazon RDS. This command provides detailed information about the database instances, including crucial attributes like backup retention settings and the latest restorable time, which indicates the most recent point to which the database can be restored.

In the context of database management, a distributed relational database often relies on automated backups to enable recovery from errors or data loss. This command retrieves pertinent metrics related to the DB instance that directly addresses restoration capabilities, allowing administrators to plan backups and ensure data integrity effectively.

Other options, like viewing log files, metrics, or logs through the AWS Management Console, focus on different aspects of database management. While they can provide information related to performance, usage, and error tracking, they do not specifically address the timing or conditions for database recoverability as clearly as the command for describing database instances. Thus, using the appropriate AWS CLI command streamlines the process of monitoring and managing the backup and recovery strategy for the database.