Which of the Following Statements Is True About Servers

Which of the following statements is true about servers?

A) They are used to provide services to users within large organizations or to Web users.
B) They are primarily used as the main, central computing system for major corporations.
C) They are used primarily to assist in solving massive scientific problems.
D) They are optimized for visualization and rendering of three-dimensional models.
E) They are used for personal computing and small business computing.