A customer has a critical, performance-sensitive web application that connects to a multimode Oracle RAC database. Which feature of WebLogic can provide signification benefit? 

Answer options:

A. The Web Session Affinity feature of Active GridLink for RAC.B. WebLogic Clustering
C. The Transaction Affinity feature of Active GridLink for RAC
D. Coherence*Web Session Replication

C

Active GridLink for Oracle RAC - In Oracle WebLogic Server 10.3.4, a single data source implementation has been introduced to support an Oracle RAC cluster. It responds to FAN events to provide Fast Connection Failover (FCF), Runtime Connection Load-Balancing (RCLB), and RAC instance graceful shutdown.XA affinity is supported at the global transaction Id level. The new feature is called WebLogic Active GridLink for RAC; which is implemented as the GridLink data source within WebLogic Server. Note: * The WebLogic Server JDBC subsystem has supported Oracle RAC since WLS version 9.0, originally developed for Oracle9i RAC.This support is based on a particular type of data source configuration, called a multi data source.A multi data source is a data source abstraction over one or more individual data sources. It serves JDBC connections from each of the member data sources according to a specified policy.A RAC multi data source configuration requires that each member data source obtain connections to a particular RAC instance. Reference: How-To: Use Oracle WebLogic Server with a JDBC GridLink Data Source