Which one of the following does  notaccurately describe the universal gravitational law?                 a.  gravitational force is proportional to the product of the two masses.      b.  every object in the universe that has mass attracts every other object in the universe that has mass.      c.  the object with the smaller mass does most of the moving because the object with the larger mass has too much inertia to move any noticeable amount.      d.  gravitational force is proportional to the square of the distance between the centers of both bodies.