The "Prisoner's Dilemma" Game Is an Excellent Vehicle for Studying

The "prisoner's dilemma" game is an excellent vehicle for studying social conflicts in the laboratory because __________.

A) the rules of the game pit self-interest against looking out for someone else's interest.
B) researchers control the strategies participants use.
C) there is one and only one right answer to the problem.
D) there are clear winners and clear losers, and thus reliable dependent variable measures.