The solution of the differential equation $$\frac{dy}{dx} = \frac{-x}{y}$$ at $$x = 1$$ and $$y = \sqrt(3)$$ is

A

$$x - y^2 = -2$$

B

$$x + y^2 = -4$$

C

$$x - y^2 = 2$$

D

$$x + y^2 = 4$$