To Help Computer Users Contact with Other People in a Rather

To help computer users contact with other people in a rather face-to-face-like manner and reduce the negative effect of alienation, a computer system can be designed:

A) with audio and video output for playing multimedia files;
B) with interactive audio and video devices for communication;
C) with recreational features to relieve users' stress in computer use;
D) with enjoyable interactive features that attract users to utilize computers more in their life;
E) to help users being more able to manage their time.