I'm confused why the answer isn't x,y,z. Ik the Falafel truck serves 2 at a time but shouldn't it be able to serve all 3 if we cover all possible scenerios?
Admin Note: Edited title. Please use the format: "PT#.S#.Q# - brief description of the question"
https://classic.7sage.com/lsat_explanations/lsat-43-section-4-game-4/
A SA question will turn your argument into a valid argument(100%). As in there should be 0 errors with your conclusion assuming the premises are true.
A strengthening question will not always ask you to validate the argument. It can, and in that case that is the right answer. But the core of a strengthening question is to make the argument stronger than how it was presented in the stimulus.
So let's say you're given a stimulus that is 0% correct, as in your given premises disprove your conclusion. To strengthen the question you would need to turn that argument that is always incorrect into an argument that might be correct(might be as in anywhere from 1-100% correct)