The correct statement about database services or database instances is
( B).An instance of the cloud database operates as a service that handles all application requests to work with the data in any of the databases managed by that instance.
Explanation:
An instance of the Database Engine can be defined as a service that all application requests to work with the data in any of the databases managed by that instance.The data can be on the same system or can be on another system
So in case of a Cloud based database engine
( B).An instance of the cloud database operates as a service that handles all application requests to work with the data in any of the databases managed by that instance.