Best answer: (C)
Identify the conclusion and the premise(s):
Premise: The illegitimacy rate of children in a society—the percentage born out-of-wedlock—is an accepted indicator of underclass criminal behavior in that society.
Premise: Even though in some demographics of the United States the rate of illegitimacy is lower than in some Western countries, in the United States overall the rate has been steadily rising.
Conclusion: This rise does not necessarily indicate that underclass criminal behavior is more prevalent than it was in the past.
Explanations:
Identify question type and give some tips:
As you look to strengthen this conclusion, consider in particular what other factors might account for a decline in underclass criminal behavior.
Scan each answer choice eliminating progressively each “wrong” answer to finish with the “best” answer:
(A) is not correct; comparing overall with particular rates does not help us in this case, since we are concerned with only the overall underclass criminal behavior. (B) takes the first premise and inverts it, then negates the inversion. But the cause of illegitimacy is irrelevant. (D) makes little difference; we are not interested in which part of the United States we find the increase. Finally, (E) implies that children will turn out to be more stable, but this is rather tenuous; the correct answer is (C). If the rate of criminal incarceration has increased significantly, then of course criminality would be reduced.