The correct answers are D and E. Decision Center exposes a REST API that is designed to automate decision-service lifecycle operations normally performed through the Business Console, especially in continuous deployment scenarios. The Decision Center REST API can be used to build, test, and deploy decision services, and to enforce a continuous deployment process with a programming language of choice. Rule deployment can be automated by using the Decision Center REST API, and RuleApp archives can be downloaded through programmatic APIs. Retrieving decision services from the repository is a normal repository-management operation exposed through the REST API model. Building, downloading, or deploying a RuleApp for a deployment configuration is also a supported deployment-automation scenario. Option B relates to Rule Execution Server runtime monitoring, not Decision Center Business Console automation. Options A and C are not the tested REST-automation operations in this context. References/topics: Decision Center REST API, decision-service repository operations, automated rule deployment, RuleApp build/download/deploy, deployment configurations.