Answer: Use cost allocation tags

## Explanation **Cost allocation tags** are the correct solution because: - **Purpose**: Cost allocation tags allow you to categorize and track your AWS costs by adding metadata (tags) to your AWS resources - **Functionality**: You can apply tags to resources like EC2 instances, S3 buckets, and other AWS services - **Cost Tracking**: AWS Cost Explorer and billing reports can then group and report costs based on these tags - **Categorization**: Tags can represent departments, projects, cost centers, or any other organizational structure **Why other options are incorrect**: - **AWS IAM**: Manages access control and permissions, not cost tracking - **AWS Organizations**: Helps manage multiple AWS accounts but doesn't directly provide resource labeling for cost categorization - **AWS Cost Management coverage report**: Shows which services are covered by Cost Explorer, but doesn't provide the labeling mechanism itself **Best Practice**: Use consistent tagging strategies across all AWS resources to enable detailed cost analysis and allocation.

Author: Ritesh Yadav