A customer needs to analyze an application that was developed for Oracle Application Server 10gR2 or 10gR3 (OC4J) in order to prepare to upgrade the infrastructure to WebLogic 12c. The customer wants understand the changes required to be made to the application and how to configure WebLogic in to support the newly upgraded application. Which three actions would you recommend for upgrading the customer's application and server configuration?（）

A. Use Oracle Upgrade Manager to create a new WebLogic domain template from an OAS/OC4J installation and redeploy the application.
B. Use SmartUpgrade to analyze the OAS/OC4J server configuration and create WebLogic configuration files.
C. Use SmartUpgrade to analyze the application archive (EAR/WAR/JAR) Source Directory or IDeveloper project and generate a report that describes the areas of the application that need to be updated.
D. Use the Configuration Wizard to extend an existing WebLogic domain with OAS/OC4J support libraries and redeploy the application.
E. Use SmartUpgrade to generate application artifacts and deployment descriptors that can be deployed to WebLogic.