C: Most cloud providers help to improve business continuity by offering built-in, one-click backup and recovery capabilities. Some providers also offer the ability to store backups in different geographic regions.
D: When demand spikes or the organization needs more powerful compute resources, organizations can alter their resources instantly on demand.
E: There are significant savings in resource, maintenance, and real estate costs, in addition to the ability to optimize workloads so that they cost less to run.
Reference:
https://azure.microsoft.com/en-us/overview/cloud-migration-benefits-challenges/#overview