Instructions: 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").
Input: Fact1: freezing means changing from a liquid into a solid by reducing heat energy, Fact2: Solidification , or freezing, occurs when a liquid turns into a solid., Question: changing from a liquid into a solid by reducing heat energy what? (A) heats up (B) Evaporation (C) Dehydration (D) warms (E) kinetic energy (F) melts (G) boiling (H) solidifies
Output:
H