Social Trumps Logical

Logic exercises like these are a strength of mine, yet I have to admit the question with the social dynamic seemed easier and more obvious than the other two.  Give it a try:

The Wason Selection Task

From the "Further Analysis" at the end: According to Leda Cosmides and John Tooby, the results of the Wason Selection Task demonstrate that the human mind has not evolved reasoning procedures that are specialised for detecting logical violations of conditional rules. . . . However, they argue that the human mind has evolved to detect violations of conditional rules, when these violations involve cheating on a social exchange. . . . Cosmides and Tooby have found that when the Wason Selection Task is constructed to reflect a cheating scenario, subjects perform considerably better than they do with the standard test.