What is the impact to the backup stored on the Data Domain system?

An EMC Avamar server is integrated with an EMC Data Domain system. A backup has expired on the Avamar server and garbage collection runs.

What is the impact to the backup stored on the Data Domain system?
A . The backup is deleted based on Data Domain retention policies
B . The backup is deleted from the Data Domain system
C . HFS check is run on the backup on the Data Domain
D . The backup is immediately replicated to another Data Domain

Answer: B