Which two storage efficiency features are enabled by default on AFF systems? (Choose two.)

A. volume-level inline deduplication

B. aggregate-level compression

C. LUN-level compression

D. aggregate-level inline deduplication

Reference: https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-vsmg%2FGUID-C1E3029E-1514-4579-939B-67160E849632.html