Which three will be supported after migrating an on-pre…

Which three will be supported after migrating an on-premises database to a Database as a Service (DBaaS) instance on Oracle Cloud?

A.
increased security of application roles

B.
reduction in operational costs

C.
ability to increase capacity on demand

D.
provisioning of application testing

E.
centralization of database management

Explanation:
https://www.oracle.com/database/solutions/private-dbaas.html