Online transaction processing $($OLTP$)$ systems handle a company's routine ongoing business. In contrast, a data warehouse is typically:

Select one

A$.$ the end result of $BI$ processes and operations.

B$.$ a repository of actionable intelligence obtained from a data mart.

C$.$ a distinct system that provides storage for data that will be made use of in analysis.

D$.$ an integral subsystem of an online analytical processing $($OLAP$)$ system.