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: Chemical bonds form when substances react with one another., Fact2: All substances are composed of molecules., Question: What forms when molecules react with one another? (A) Chemical energy (B) substrates (C) chemical bonds (D) living things (E) Organic compounds (F) Energy. (G) new elements (H) flow of electrons
Output:
C