Which statement about quadrilaterals is false?
  1. All rhombuses are squares, but not all squares are rhombuses
  2. All rhombuses are trapezoids, but not all trapezoids are rhombuses
  3. All rhombuses are parallelograms, but not all parallelograms are rhombuses
  4. All parallelograms are quadrilaterals, but not all quadrilaterals are parallelograms
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Can you answer 10 correctly?