Which of the Following Is True About an Enterprise System

Which of the following is true about an enterprise system?

A) It integrates data,text,voice,and video into a single solution that includes instant messaging,calendaring,presence information,and video conferencing.
B) It employs a dynamic method of solving different parts of a problem and then combining the solutions of the sub problems to reach an overall solution.
C) It employs a database of key operational and planning data that can be shared with authorized users across the organization.
D) It provides users with a computing platform,including an operating system,a programming language execution environment,and a Web server.