In the Experiments Discussed in Chapter 7, Social Scientists Had

In the experiments discussed in Chapter 7, social scientists had subjects in a variety of countries play the "Ultimatum" and "Dictator" games. They found that

A) the experimental results matched the theoretical predictions of how purely self-interested actors would behave.
B) the experimental results were similar across a wide range of industrialized democracies.
C) the experimental results varied greatly across a range of small-scale societies.
D) the scholars found all of the above to be true.
E) the scholars found only (B) and (C) to be true.