Which one of the following is the most accurate evaluation of the author's reply?

　　Which one of the following principles， if valid， justifies the author's argument?

　　Which one of the following would it be most helpful to know in order to evaluate the argument?

　　△解释题

　　The author concludes that...partly because...

　　Which one of the following, if true, argues most strongly against the explanation reported in the passage？

　　Which one of the following, if true, most helps to explain why...?

　　Which one of the following principles, if established, would justify the judgments about A's & B's actions?

　　△矛盾解决题（也可归类到解释题里）

　　Which one of the following, if true, most helps to resolve the apparent discrepancy between the two?

　　Which one of the following, if true, most helps explain the difference in...?

　　Which one of the following, if true, most helps to reconcile the author's decision with the goal stated in the passage?