condtionality in assumption family questions

[ltowns1]

Hey guys, I have a question. When it comes to condtionality in stregthening, weakening, and flawed questions , what should I do first? So for example a question like #2 pt 24 section 3.. I got the logic, but I felt like I was lucky I got this answer. Where exactly did the weakeness of this argument come from, the suffucient condition, the premise above the conditional statement, or someplace else? On assumptions family questions that have conditionality in their PREMISES other than necessary/sufficient (ex:stregthening, weakening, flawed questions) what should I look to weaken?