A news agency editor wants to publish news articles to an intermediate Publish (preview) instance...

Create a separate live copy to preview content and set up a new replication agent for preview server1. According to Adobe Experience Manager documentation4, a live copy is used to create a local copy of content from another site that can be modified independently. A replication agent is used to publish content from an author instance to a publish instance. Creating a reverse replication agent on preview server (B) is not necessary as reverse replication is not supported by AEM as a Cloud Service1. Creating a custom publish workflow (E) is also not necessary as workflows are handled by AEM Cloud Service automatically1.