What is the difference between object replication and content replication?

A.
Object replication and content replication are the same.

B.
Object replication moves object metadata and content files from a source repository to a target
repository; content replication moves content files only to a target repository.

C.
Object replication synchronizes object metadata and content files to a source repository to a
target repository; content replication synchronizes content files between filestores in a single
repository.

D.
Object replication copies object metadata and content files from the source repository and
deletes them in the target repository; content replication copies only content files to the target
repository and deletes them in the source repository.