Construction of angles, triangles, quadrilaterals, theorems of areas of triangles and parallelograms

Which of the following quadrilateral ABCD cannot be constructed ?

In rectangle PQRS, its side PQ divided into five equal parts by points X, Y, Z, T. The ratio of area of triangle $\Delta YZR$ and area of rectangle PQRS $[\frac{\text{Area }(\Delta\text{YZR)}}{\text{Area (Rectangle PQRS)}}]$ is