Sprinklers are the newest form of sprinkler systems and rely on ultra-fine mists instead of traditional shower-type systems. pre-action water mist water-free air-dry

Choice (B) is the correct answer. Water-mist sprinklers are the newest technology in sprinkler systems. These allow for less water to be used overall while still attaining the same level of fire extinguishing. Instead of using a shower that soaks everything underneath, a fine mist will still put the fire out while possibly saving some areas of the building from damage.