Film preservation requires transferring old movies from their original material—unstable, deteriorating nitrate film—to stable acetate film. But this is a time-consuming, expensive process, and there is no way to transfer all currently deteriorating nitrate films to acetate before they years of Hollywood will not be preserved.
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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