8. As shown in Figure 16, in hexagon $A B C D E F$, the diagonals $A D, B E, C F$ intersect at point $O$, and $A D=B E=C F=2, \angle A O B=\angle C O D=$ $\angle E O F=60^{\circ}, S$ is the sum of the areas of $\triangle A O B$, $\triangle C O D$, and $\triangle E O F$. Then ( )
(A) $S\sqrt{3}$
(D) The relationship between $S$ and $\sqrt{3}$ is uncertain
(Answer: (A))