@Shannell_E'llan Always. I usually just speed it up to 1.5 or 1.7 if i felt i really understood the question. I like hearing detailed rationale for why the other answers are wrong because sometimes I get additional tips and insights I didn't catch on my own.

Was stuck between E and A. Didn't pick A at first because the answer choice says "Humans should not intervene..." "Should not" made me doubt it was right. I would've picked it immediately if it said "humans should intervene..."

@MatthewGhebredingle Give yourself some grace. You are not dumb, you are learning.

When I read the sentence and also watched the video - explanation says "must" is the necessary indicator word - I actually felt that "ensure" in the context as a whole was a bigger/better Group 2 indicator word and went with that. The split between the two concepts into suff. / necessary then felt more natural for me. Ex. All self driving cars must be programmed. WHY? To ensure these 2 things, etc. But it did take looking at the big picture get that diagram.

@jjmaiteh Do you mean why those are premises and not conclusions? Premise and support in my understanding are the same, premise supports the conclusion.