The given quadrilaterals are trapezoid, rhombus, and parallelogram. In a parallelogram, both pairs of opposite sides are parallel. Rhombus is a parallelogram since all the properties that are true for a parallelogram are also true for a rhombus. So, in a rhombus, both pairs of opposite sides are parallel. In a trapezoid, only one pair of opposite sides is parallel. Therefore the correct choice is trapezoid.