Which feature lets individual departments view their own Azure cost usage?

Showback/Chargeback is the correct answer because it's a financial accounting practice that allows organizations to allocate the costs of shared IT services, like Azure resources, back to the individual departments or business units that consume them. This enables departments to see and be accountable for their specific Azure usage costs. Azure Billing Alerts notify you of spending thresholds but don't provide departmental cost breakdowns. Azure Cost Tags are used to categorize resources for cost analysis but require a separate reporting mechanism to present departmental views. Azure Cost Exports allow you to export detailed cost data, which then needs to be processed and analyzed to achieve departmental showback/chargeback.