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medium · LSAT Logical Reasoning

Every painting from the Orsini workshop contains a geometric underdrawing. Such paintings also contain azurite in the sky layer except during the workshop's final decade, when azurite was unavailable. A panel contains azurite but infrared imaging reveals no geometric underdrawing. Imaging would reveal such an underdrawing even beneath later paint.

Which one of the following is most strongly supported by the information above?

  1. The panel cannot have been painted during the Orsini workshop's final decade.
  2. The panel is a final-decade Orsini work whose geometric underdrawing was hidden by later paint.
  3. The panel was intended to imitate an Orsini painting made before the workshop's final decade.
  4. The panel's missing geometric underdrawing means that it was not produced by the Orsini workshop.
  5. The azurite must have been added after the panel left the Orsini workshop.

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