We identified four main eras of data processing in business, what characterizes the 'business intelligence era'?

Question $16$ options:

A$)$

Transactions were batched and processed by a mainframe as they occurred

B$)$

Transactions were stored in large mainframe databases called 'batch'

C$)$

The use of transactions data for decision support

D$)$

The use of new technologies and management practices to leverage the increasing amounts of collected data