An Enterprise Resource Planning System can best be described as

A$.$ a single database that collects data and feeds it into applications that support each of the company's business activities, such as purchases, production, distribution, and sales

B$.$ a database that is primarily used by a purchasing department to determine the correct amount of a particular supply item to purchase.

C$.$ a sophisticated means of linking two or more companies to facilitate their planning processes.

D$.$ a collection of programs that use a variety of unconnected databases.

E$.$ exception reporting system for plant managers.