Which One of the Following Statements About a Group Is

Which one of the following statements about a group is true?

A) They are characterized by occasional communication among members over time and a size small enough to permit face-to-face communication.
B) The most common technique for accomplishing work through people is dividing them into work groups.
C) Groups invariably cause desirable consequences within the organization.
D) Groups are a simple gathering of people consisting of 5 or more people.
E) Groups exist only in some organizational structures.