The correct answer is A) Unit imparts a rotational motion to the steam and water mixture. A cyclone steam separator works by using centrifugal force to separate the steam and water in the steam and water mixture. The mixture is forced to rotate as it enters the separator, causing the heavier water droplets to be thrown outward to the walls of the separator while the lighter steam rises upward. This rotational motion is a key operational characteristic of the cyclone steam separator. The other answer choices are incorrect because B) describes the end result of the separation process, C) is not an operational characteristic, and D) is the opposite of how the centrifugal force acts on the water in the mixture.