How Does Aggression Between or Against Workers Differ from Violence

How does aggression between or against workers differ from violence outside of the workplace?

A) In general, most murder victims in the United States do not know their assailants, but in the workplace most killings occur between co-workers.
B) Instrumental aggression rarely occurs in the workplace, although it is common outside of the workplace.
C) Aggression in the workplace is most often physical.
D) Most aggression in the workplace is verbal.