Answer:
All of the above.
Quadrilateral's must have at the maximum 4 equal sides, or the minimum 2 equal sides. 
a square has 4 equal sides. 
a rectangle has 2 equal side. (that add up to 4 because each side is a pair of 2) 
a rhombus can be a quadrlaterial depending on the shape. 
a parrellelogram mostly have atleast 2 equal sides. 
and a trapezoid mostly has atleast 2 equal sides.
Hope this helps!