Team LR forsure!! Not sure what it is, but even after scoring well in LG, every section still makes me a little nervous

You can strengthen an argument without making it completely valid. As long as an answer choices pushes an argument even a little bit toward validity, it strengthens it. Sufficient assumptions must make an argument completely valid.

Also, "most" in terms of strengthen questions means most supports out of the answer choices. So 4 of them will not strengthen and one will, so that is the one that most strengthens out of those choices.

Pretty bummed about not being able to use the Mastermind, but can also vouch for the Casio with the rotating bezel.

I'm interested in joining the study group as well!