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