Which of the Following Are Described as Virtual Teams

Which of the following are described as virtual teams?

A) Groups of employees who are almost (virtually) identical to each other in skills and values.
B) Cross-functional groups of employees that operate across space, time and organizational boundaries.
C) Formal work teams in which most members do not feel that they are really part of the team.
D) Informal groups that meet only in cyberspace.
E) Groups of employees from different departments who are located near each other.