A natural history museum contains several displays of wild animals. These displays are created by drying and mounting animal skins. In some of the older displays, the animals' skins have started to deteriorate because of low humidity and the heat of the lights. The older displays are lit by tungsten lamps but the newer ones are lit by compact fluorescent lamps designed for use in museums. These lamps give off as much light as the tungsten lamps but less heat. The statements above, if true, most strongly support which one of the following? ['The humidity in the museum is lower today than it was when the older displays were first put in place.', 'The displays that are lit by many compact fluorescent lamps are more prone to deterioration than the displays that are lit by a few tungsten lamps.', 'Some of the older displays will last longer if the tungsten lamps that illuminate them are replaced by compact fluorescent lamps.', 'More of the displays are lit by compact fluorescent lamps than are lit by tungsten lamps.']