What feature allows Oracle Autonomous Database to manage workloads automatically?

Oracle Autonomous Database primarily utilizes the Resource Manager feature to manage workloads automatically. This capability is essential for ensuring that the database can dynamically allocate resources based on the current workload demands, thus optimizing performance without manual intervention.

The Resource Manager allows for the prioritization of different workloads, adjusting CPU and I/O resources as needed. It intelligently categorizes sessions and processes, enabling it to respond in real time to fluctuations in demand. This automatic resource allocation is crucial in an autonomous environment, where the database operates with minimal human oversight.

In contrast, while other options might suggest management or scheduling features, they do not specifically encompass the automated workload management capabilities that the Resource Manager provides within Oracle Autonomous Database. Task Automation, for instance, may relate to setting up scripts or procedures to perform tasks at scheduled times but does not inherently deal with the allocation and optimization of resources based on workload. Service Orchestrator is more focused on the integration and management of cloud services rather than direct workload management. Workload Scheduler generally pertains to scheduled jobs rather than the dynamic management of running workloads.

Therefore, the Resource Manager stands out as the feature specifically designed to automate the management of workloads in Oracle Autonomous Database, making it the correct answer.