Which AWS capability should a company use to track cloud costs in detail by department and project?

Cost allocation tags are key-value pairs that you can attach to AWS resources to organize them. By activating these tags in the AWS Billing and Cost Management console, you can track costs associated with specific departments, projects, or other organizational units. This allows for detailed cost analysis and reporting. Consolidated billing aggregates costs from multiple accounts into a single bill, but doesn't provide detailed departmental or project breakdowns. AWS Marketplace is a digital catalog for third-party software and services, not a cost tracking tool. AWS Budgets allows you to set custom budgets and receive alerts when costs exceed thresholds, but it relies on cost data that can be refined by cost allocation tags for granular tracking.