General solution of differential equation: $\large\frac{dy}{dx}=\frac{y+x-2}{y-x-4}$

Question

$(a)\;x^2+2xy-y^2-4x+8y=c \\ (b)\;x^2+2xy+y^2+4x+8y=c \\ (c)\;x^2+2xy-y^2+4x+8y=c \\ (d)\;x^2+2xy+y^2-4x+8y=c$