$\begin{array}{1 1}(A)\;\large\frac{y-4x(x^2+y^2)}{4y(x^2+y^2)-x}\\(B)\;\large\frac{y+4x(x^2+y^2)}{4y(x^2+y^2)-x}\\(C)\;\large\frac{y-4x(x^2+y^2)}{4y(x^2-y^2)-x}\\(D)\;\large\frac{y-2x(x^2+y^2)}{4y(x^2+y^2)-x}\end{array}$