In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Q: Fact1: heating salt water causes the water to evaporate while the salt remains, Fact2: For example, in salt water, salt is the solute and water is the solvent., Question: What is left over when salty water is heated? (A) Time and energy (B) nutrients (C) Sediment (D) energy (E) bacteria (F) Energy. (G) loose soil (H) The solute
A:
H