Which of the Following Statement Regarding the Huawei Disaster Recovery

Which of the following statement regarding the Huawei disaster recovery solution on the implementation of disaster recovery exercise is wrong?

A) The disaster recovery walkthrough automatically stops the production application and unproduces the production to production host mapping on the deviceManager
B) The application of disaster recovery drill is mainly about the production system to switch to disaster recovery operation, exercise disaster recovery environment is correct
C) After the disaster recovery drills are executed, the replication relationship will be split, and the disaster recovery end will take over the production system running service
D) The Drill process can be normal in the production side to stop the business, a quick move to a disaster recovery operation