To get an indicative pricing on how much it would cost to host 2 Azure Windows virtual machines in the East US region, you should use the Azure Pricing Calculator (Option B). The Azure Pricing Calculator allows you to estimate the costs of Azure resources and services based on your specific configuration and usage requirements. You can input details about the virtual machines you plan to deploy, including region, size, and other parameters, to get a more accurate cost estimate. Azure Cost Management (Option A) is more focused on monitoring and optimizing your actual Azure spending, while the TCO Calculator (Option C) is used for assessing the Total Cost of Ownership over a longer period and may not provide immediate cost estimates for specific resources like virtual machines.