In a Dictator Game Played Among Anonymous Participants, Americans Tend

In a dictator game played among anonymous participants, Americans tend to be

A) more generous than people from small-scale societies.
B) less generous than people from small-scale societies.
C) equally generous as people from small-scale societies.
D) more generous than people from small-scale societies if they are female but less generous than people from small-scale societies if they are male
E) more generous than people from small-scale societies if they are female but less generous than people from small-scale societies if they are male.