OP review the Valid ArgumentForm 4 in the "Some and Most Relationships." The inference (B) in this Q is very clear. (D) is reversal of the first sentence.
Right @nye8870, it's especially helpful for tricky parallel flaw questions! It's best to know that A-->B, B most C, therefore A most C is an invalid argumentform rather than thinking "hmm this doesn't match up with my recollection of valid arguments."
I'd say -12 to -14. The LR and RC were definitely easier than October (but not by much) while the LG was much harder than October (given that October was actually very cookiecutter).
lol @montahar and @aleun62 ... indeed. Suits is a cookiecutter version of TGW. Entertaining, almost has an Entourage feel to it, but TGW takes the legal drama to another level.
... 's explicitly stated, the argument in the stimulus is invalid ... what's explicitly stated, the argument in (C) is valid. ... correct answer has the same argumentform. But a conditional statement has ... a completely different logical form than a non-conditional ...