What did I do wrong

Hi @Nativeguy, Thanks for the question! So I think the mistake you made here was in organizing the premises and conclusion. Remember, just because the sentences are given to you in a certain order, doesn’t mean that the conclusion is the last sentence, and the premises come before. In fact, in this argument, the conclusion is the first sentence, and we know this because the other sentences are introduced with “We know this because…” which indicates that they’re explaining the first sentence. So this should actually be diagrammed P1) SE (struggle early in life) P2) SE —> GP (able to keep a good perspective on the world) C) ~TSG (take success for granted) Now we’re asked for something that would help us make this conclusion logically follow; in other words, this is a strengthen with sufficient premise. And looking at this argument, there’s clearly a gap between GP and ~TSG, so we’re going to be looking for something that helps us connect those. Both (B) and (E) provide possible connections. But (B) says GP —> ~TSG and (E) says ~TSG —> GP Now what do we want? Well, we want to be able to say SE —> GP —> ~TSG so we need GP —> ~TSG, and that’s what (B) gives us. (E) is a mistaken reversal, and so is incorrect. Hope this helps! Feel free to ask any other questions that you might have.

Thank you so much this helps out tremendously.