The statement "Exactly one pair of parallel sides" is not a property of a rhombus. A rhombus has two pairs of parallel sides, not just one (option C)
What is a rhombus?
A rhombus, a quadrilateral with four sides, boasts a unique quality: all sides are equal in length. This special parallelogram showcases parallel opposite sides and congruent lengths across all sides.
To simplify, a rhombus is a distinctive parallelogram characterized by four equal sides, congruent opposite angles, and diagonals intersecting at right angles.