A sample of ocean water was weighed. Its total mass was determined to be 17.45 grams. The mixture was left for the water to evaporate. 1.98 grams of salt remained after all the water had evaporated. Calculate the mass of the water that evaporated from the salt water mixture.

15.5 grams water

15.47 grams water

19.4 grams water

19.43 grams water