Quadrilateral abcd has vertices a(6,-3), b(8,-1), c(3,-1), and d(1,-3). quadrilateral wxyz has vertices w(1,6), x(2,7), y(-1,7), and z(-2,6). which is true regarding the two shapes?

From the vertices of these two quadrilateral, you can get they are both parallelogram and they have the same angels. You can judge the choices according to the information you get from the vertices, from length and angel.