Which of the following statements about global deduplication is false?
A. Deduplicated copy in different storage policies uses the same DDB.
B. Deduplicated copy in different storage policies uses the same disk library and deduplication attributes.
C. Deduplicated copy in different storage policies uses the same deduplication pools as the backup target.
D. Different storage policies must adopt the same backup data retention period.
Reference: https://e.huawei.com/en/material/MaterialDownload?materialid=2fcfd0c2127f424fb238d7298e4ced5f&language=tr