Passage Summary: Since we can help adults stop having nightmares and we know which kids are likely to grow up to have them, we should find those kids and help them now.

Conclusion: Psychologists should focus on finding nightmare-prone children to teach them the dream-replacement technique.

Reasoning: A technique exists to replace nightmares with pleasant dreams in adults, and children who have nightmares are highly likely to continue suffering from them as adults.

Analysis: Bethany is moving from a set of facts about what *can* be done to a moral or professional claim about what *should* be done. To justify this leap, we need a principle that mandates intervention when a future problem is predictable and treatable. I would expect the correct answer to link the ability to prevent future suffering with an obligation to act. It’s essentially the logic of preventative medicine: if you can stop a future ailment today, you ought to do so.