An application runs across multiple AWS Regions and shows intermittent performance problems. A developer must implement distributed tracing with AWS X-Ray to find the root cause. What should the developer do regarding Region annotations so tracing works correctly across AWS services and the application's own services?

X-Ray automatically adds Region annotations for AWS services, such as EC2 instances or S3 buckets, when it traces requests through them. This built-in functionality ensures that the geographical location of these AWS resources is captured without manual intervention. For custom, user-defined services within your application, you need to explicitly add Region annotations in your code using the X-Ray SDK. This allows X-Ray to accurately map the flow of requests across different regions, providing a complete distributed trace that includes both AWS and your application's components. The X-Ray console is for viewing and analyzing traces, not for adding annotations. The X-Ray daemon collects trace data but does not add annotations itself; annotations are added by the X-Ray SDK in your application code.