The tidal range at a particular location is the difference in height between high tide and low tide. Tidal studies have shown that one of the greatest tidal ranges in the world is found in the Bay of Fundy and reaches more than seventeen meters. Since the only forces involved in inducing the tides are the sun' s and moon' s gravity, the magnitudes of tidal ranges also must be explained entirely by gravitational forces. Which one of the following most accurately describes a flaw in the reasoning above? ['It does not differentiate between the tidal effect of the sun and the tidal effect of the moon.', 'It fails to consider that the size of a tidal range could be affected by the conditions in which gravitational forces act.', "It presumes, without providing warrant, that most activity within the world's oceans is a result of an interplay of gravitational forces.", 'It gives only one example of a tidal range.']