Justify the Conclusion

[Kmikaeli]

Do these type of question stems involve an answer choice that is sufficient enough to be correct or are they necessary assumptions? I believe they are sufficient (because they have sufficient indicators within question stem) where the answer choice must be true but can have extra detail within them as opposed to necessary assumptions that must be true with no new information such as assumption questions.

[Nikki Siclunov]

Kmikaeli,

The correct answer choice in Justify questions must be sufficient to prove the conclusion, when added to the premises of the argument. You're correct in that the sufficient condition indicator "if" in the stem mandates such an answer, which will - by default - introduce new information into the stimulus. Justify answer choices cannot be proven with the information contained in the stimulus; they are not necessarily true given that information. By contrast, Assumption questions require you to identify an answer choice that must be true for the conclusion to work, i.e. a necessary assumption. Such statements will never introduce new information.

Hope this helps a bit!