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Which one of the following statements is incorrect?

A) The quadrilateral formed by joining the mid-points of adjacent sides of a rectangle is always a rhombus

B) The quadrilateral formed by joining the mid-points of the pair of adjacent sides of a rhombus is always a rectangle

C) The line segment joining the mid-points of the sides of a triangle divide it into three congruent triangle

D) The quadrilateral formed by joining the mid points of the pairs of adjacent sides of a square is always a square

E) None of these