What should be considered when using replication with Dell EMC Cloud Tier?

What should be considered when using replication with Dell EMC Cloud Tier?
A . Cloud Tier-enabled systems must use collection replication
B . Source system must be running DDOS 5.7 or higher to support replication to the cloud
C . Replicated file is placed in the active tier first when Cloud Tier is enabled
D . Replicated file is placed in a cloud unit first if Cloud Tier is enabled

Answer: C