The only handwriting analysts who claim that handwriting provides reliable evidence of a person’s
Why this is right
This a confusing, but strong, idea, so we might want to diagram it to think about what it's saying: IF you claim handwriting provides reliable evidence, THEN you're irresponsible By contrapositive, if you're responsible, then you wouldn't claim that handwriting provides reliable evidence. The weakening effect is somewhat weird, then. If Greg builds his licensing board, and it deters all the irresponsible analysts, then there will only be responsible analysts left. According to this answer, none of the responsible analysts will claim that handwriting provides reliable evidence of character, so how will licensed handwriting analysts be a legitimate courtroom tool for character assessment. Imagine you're in a courtroom, once this licensing board has come to fruition. A handwriting analyst comes up to testify to a defendant's character, via analyzing their handwriting. If she's irresponsible, she'll be deterred by the licensing board from saying that analyzing handwriting is a reliable tool. If she's responsible, this answer choice says that she would never claim that analyzing handwriting is a reliable tool. So if the defense attorney asks, "Ma'am, is analyzing handwriting a reliable way to to assess character?", then both irresponsible and responsible analysts would say, "No it is not." Thus, it won't be a legit tool. Perhaps an easier way to understand this answer is to just think that Greg is saying, "Hey, handwriting analysis gets a bad reputation because there are some bad apples making exaggerated claims. Once we get a licensing board, we'll weed out the bad apples and have ourselves a respected tool." This answer is essentially saying, "The only people who consider this a respected tool are bad apples. So once you eliminate them, there's no one left."
Skill tested: Weaken · how this choice captures the argument's function is the move to repeat next time.