Given is a concentrated solution of a weak electrolyte $$A_xB_y$$ of concentration 'c' and dissociation constant 'K'. The degree of dissociation is given by :

A

$$\left[K \times c^{x+y-1} x^x y^y\right]^{x+y}$$

B

$$\left(\dfrac{K}{c^{x+y-1} x^x y^y}\right)^{\frac{1}{x+y}}$$

C

$$\left(\dfrac{c^{x+y-1} x^x y^y}{K}\right)^{x+y}$$

D

$$\left(\dfrac{c^{x+y-1} x^x y^y}{K}\right)^{\frac{1}{x+y}}$$