Eight points are chosen on a circle, and chords are drawn connecting every pair of points. No three chords intersect in a single point inside the circle. How many triangles with all three vertices in the interior of the circle are created?
<spanclass=′latex−bold′>(A)</span>28<spanclass=′latex−bold′>(B)</span>56<spanclass=′latex−bold′>(C)</span>70<spanclass=′latex−bold′>(D)</span>84<spanclass=′latex−bold′>(E)</span>140