A charge $$q$$ is placed at one corner of a cube as shown in figure. The flux of electrostatic field $$\vec{E}$$ through the shaded area is:

A

$$\frac{q}{8\varepsilon_0}$$

B

$$\frac{q}{24\varepsilon_0}$$

C

$$\frac{q}{48\varepsilon_0}$$

D

$$\frac{q}{4\varepsilon_0}$$