In the dark, an object is more clearly seen when viewed in peripheral vision than when viewed directly. this phenomenon occurs because the rods located in the retina are more sensitive in the dark than cones and are not found in the fovea a less sensitive in the dark than cones and are not found in the fovea b as sensitive in the dark as cones and are few in number in the fovea c more numerous than cones are in the fovea d as numerous as cones are all over the retina