A customer wants to improve the availability of a web application and provide more predictable scalability when scaling out the application.   
Which Feature of WebLogic should you recommend to help solve this problem?（）

A.EJB Archive  
B.Deployment Descriptor
C.META-INF sub directory
D.Resource Adapter archive
E.Java library

A.isolates WebLogic from RAC changes
B.has a simple configuration
C.enables statement caching  
D.performs faster failure detection and failover
E.is supported in WebLogic Domain Templates

A.WebLogic Server Standard Edition
B.WebLogic Server Enterprise Edition
C.WebLogic Server Suite
D.WebLogic Server Grid Edition
E.WebLogic Server Cloud Edition