I got this one right, but got weirdly hung up on the distinction between "[persuading] people that they need consumer goods when they merely desire them..." vs "persuades people that they need things that they merely want." In the context of this argument there seems to be little difference between "needs things they merely want" and "need consumer goods when they merely desire them," but I can see in other questions the term "thing" being too general compared to the specific item, "consumer goods," being discussed.

With 26 seconds under I marked A as the correct answer, and for confidence used process of elimination for the other questions, and my reasoning for the eliminations mostly followed J.Y's explanations. I likely could've saved more time by being more confident in my answer, but I'm quite satisfied with the timing I had already.