What is one of IBM's Operational Responsibilities for managing the IBM Cloud Object Storage Service?

What is one of IBM’s Operational Responsibilities for managing the IBM Cloud Object Storage Service?

What is one of IBM’s Operational Responsibilities for managing the IBM Cloud Object Storage Service?
A . Provision and manage the VSIs required to serve the data using NFS
B . Ensure data backup if necessary
C . Monitor and restore data backups
D . Monitor and manage service health and availability

Answer: D