Question: A shallow container of salt water is placed in sunlight for a day. Which is the most likely result?

  Options: 
 A. All of the mixture will evaporate.
 B. The salt will keep the water from evaporating.
 C. The salt will separate from the water and float at the top of the container.
 D. Only the water will evaporate and the salt will remain in the container.
Answer: D