The “useful to know” questions (74-1-21) I call “Evaluate” questions, and I think the best way to look at them is like simultaneous strengthen/weaken questions. What I mean by that is, the answer choices pose question; answer the question however you like. For the right answer, one answer to the question posed by the answer choice will strengthen the argument, and the other will weaken it. For instance, back to 74-1-21, if the answer to the question posed in (B) is “Yes,” then that weakens the argument – it suggests that the decline in obedience is related to the treat, not the “fairness.” On the other hand, if the answer is “No,” then the argument is strengthened. If the dogs are treated “fairly,” i.e. equally, then the obedience continues. Answering the questions posed in other answer choices doesn’t alter the strength of the argument.