Which of the Following Can Help Reduce a User's Effort

Multiple Choice

Which of the following can help reduce a user's effort in doing a task with an information system?

A) changing developers of the information system
B) enhancing the usability of the information system
C) installing he system at a different location
D) designing the system interface with large amount of texts, pictures, animations, and bright colors
E) utilizing equipments that need a lot of body movement in use