A company is migrating a set of on-premises applications that run on Windows Server 2012 and SQL Server Standard Edition. The applications are business-critical but the underlying code has not been touched in years and there is no appetite to change it. The primary business drivers for the migration are exiting an expensive data center lease within 90 days and reducing the ongoing Microsoft licensing spend, which is currently paid to a third-party reseller. Compliance requires that Software Assurance benefits be preserved where they exist. Which combination of migration approach and licensing strategy best meets these goals?