The length of each side of a cubical closed surface is l. If charge q is situated on one of the vertices of the cube, then the flux passing through each face of the cube will be

• A

  $\frac{\mathrm{q}}{6{\mathrm{\epsilon }}_0}$

• B

  $\frac{\mathrm{q}}{12{\mathrm{\epsilon }}_0}$

• C

  $\frac{\mathrm{q}}{24{\mathrm{\epsilon }}_0}$

• D

  $\frac{\mathrm{q}}{16{\mathrm{\epsilon }}_0}$