How will the right answer fit in terms of support and conclusion?

Only the right answer will support disagreeing with the conclusion in the passage.

Highlight the main conclusion in the passage, if there is one:

most elementary school computers…put children at the same risk of repetitive stress injuries as office workers.

Researcher: [BACKGROUND]. Consequently, [SUPPORT]. Evidently, [INTERMEDIATE CONCLUSION], and thus [CONCLUSION].

This one’s a two-fer! You should recognize the author changed the subject by bringing a lot of new wording in the conclusion: “risk”, “repetitive stress injuries”, and “office workers” aren’t mentioned anywhere else in the passage. The right answer will call out that disconnect.

But also, you gotta catch that the conclusion says “the same risk”, which tells you the author is making a comparison. So you expect the right answer will also probably tells us the “children” and “office workers” aren’t really comparable.

Map the wording of the answers to the wording of the passage:

(A) …is different for children than for adults.

Just knowing something is “different” isn’t specific enough to explain the “risk of repetitive stress injuries” might not be the same. If you picked this, you added in another step of reasoning to connect this to the conclusion. You’re not allowed to do that.

(B) …more time working at computers at home…

Time spent on computers “at home” is totally irrelevant to a conclusion that’s only about “most elementary school computers”.

(C) …makes them less susceptible than adults to repetitive stress injuries.

This maps to the “risk for repetitive stress injuries” and makes the same comparison between kids and adults that the passage makes. This supports disagreeing with the author’s conclusion for sure.

(D) …are usually not at the recommended heights…

You want support for disagreeing that kids have “the same risk” as adults, right? So you definitely don’t want info about a similarity between the kids and the adults, which is what this is. This might actually support the author’s conclusion.

(E) …more likely to report injuries…

Careful, you know how likely someone is to “report” an injury isn’t necessarily related to the “risk” of being injured in the first place.

(E) is the correct answer.