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: fire converts chemical energy into light and heat energy, Fact2: Wood can help Fire to burn., Question: What can convert chemical energy into light and heat energy? (A) engines (B) Hot water (C) Burning wood (D) Firecrackers (E) sound (F) Green beans (G) cigarettes (H) science
Output:
C