The company has 10 departments and plans to implement an Azure environment. You must ensure each department can use a different payment option for the Azure services it consumes. What should you create for each department?

A subscription is the correct choice because it serves as a billing unit in Azure. Each subscription is linked to a single billing account, allowing different payment options to be associated with individual subscriptions. By creating a separate subscription for each department, you can assign distinct payment methods to each, fulfilling the requirement. A reservation provides discounted pricing for Azure services but does not manage payment options. A resource group is a logical container for related Azure resources and does not handle billing or payment. A container instance is a single Docker container that runs in Azure and is a compute resource, not a billing or organizational unit for payment.