If $$2 \cot x = 5$$, then what is $$\frac{2 \cos x - \sin x}{2 \cos + \sin x}$$ equal to?

A

$$\frac{3}{4}$$

B

$$\frac{1}{3}$$

C

$$\frac{5}{6}$$

D

$$\frac{2}{3}$$