I just took PT 148 Section 1 and I'm very confused with question 21. It reads:
No occupation should be subject to a licensing requirement unless incompetence in the performance of tasks normally carried out within that occupation poses a plausible threat to human health or safety.
'No' is a negated necessary indicator & 'unless' is a negated sufficient indicator. The curriculum says when encountering these it doesn't matter if you put the term as the necessary or sufficient condition because of the contrapositive. But, when you have both indicators that surely can't be the case as this question proves. If the curriculm covers how to handle conditional statement with both kinds of indicators I missed it.
So my question is, how do you handle these? Do you just need to use intuition to figure out which term goes in the sufficient/necessary spots? Do you prioritize one indicator over the other? Or do the indicators cancel each other out and you proceed as if they never existed?
The diagram for this questions is
If subject to licensing agreement (LR) → Incompetence poses threat (IPT)
(Contra) /IPT → /LR
This is a crazy question under timed conditions. I feel like parallel flaw questions sometimes punish you for treating them like parallel reasoning questions, so that makes me hesistant on choosing B just because of it's similar structure. A has a flaw that is quite similar to the stimulus. I feel like it is close enought to be a correct AC if B wasn't there.