You are responsible for migrating your on-premises legacy databases on 11.2.0.4 version to Autonomous Transaction Processing "" Dedicated (ATP""D) in Oracle Cloud Infrastructure (OCI). As a solution architect, you need to plan your migration approach. Which two options do you need to implement together to migrate your on-premises databases to OCI? (Choose two.) 

Answer options:

A. Use Oracle GoldenGate replication to keep on-premises database online during migration.
B. Convert on-premises databases to PDB, upgrade to 19c, and encrypt.
C. Use Oracle Data Guard to keep on-premises database always active during migration.
D. Retain changes to Oracle shipped privileges, stored procedures or views in the on-premises databases.
E. Retain all legacy structures and unsupported features (e.g. legacy LOBs) in the on-premises databases for migration.

BC