In What Way Do Managers Benefit from the Use of a Database

In what way do managers benefit from the use of a database, or "data warehouse"?

A) Data can be entered at numerous input terminals within the organization.
B) The managers would not be completely responsible for the information that is entered into the database system.
C) The managers could combine or adjust these data to answer the questions from particular internal and external users.
D) The managers do not benefit, as the information requires technical expertise to retrieve.
E) Managers can store old documents in hard copy.