单选题You are doing an environment assessment for a client that has invested in Oracle RAC for fault tolerance， load balancing， and scalability. The client also invested in clustered Oracle WebLogic Server. You notice that this client’s environment is not in

You are doing an environment assessment for a client that has invested in Oracle RAC for fault tolerance， load balancing， and scalability. The client also invested in clustered Oracle WebLogic Server. You notice that this client’s environment is not integrated for active-active high availability deployment of applications.  What will be your recommendation to achieve that ？ （）