Professor: Each government should do all that it can to improve the well-being of all the children in the society it governs. Therefore, governments should help finance high-quality day care since such day care will become levels if and only if it is subsidized.
What this question is testing
Your task
Find the assumption the argument requires in order for its conclusion to hold.
Common trap
Answers that would help the argument but aren't strictly required (sufficient, not necessary).
Winning move
Negate each choice — the right one breaks the argument when negated.
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