The solution of the differential equation $$(x^2 + y^2)dx - 5xy \, dy = 0$$, $$y(1) = 0$$, is :

A

$$|x^2 - 2y^2|^6 = x$$

B

$$|x^2 - 4y^2|^6 = x$$

C

$$|x^2 - 4y^2|^5 = x^2$$

D

$$|x^2 - 2y^2|^5 = x^2$$