Why would the replication configuration be missing?

After logging into the Vault UI, a user complains that they cannot enable Replication.

Why would the replication configuration be missing?
A . replication wasn’t configured in the Vault configuration file
B . replication hasn’t been enabled
C . Vault is running an open-source version
D . replication configuration isn’t available in the UI

Answer: C

Explanation:

Replication is not available in open-source versions of Vault. It is an enterprise feature.