Definition: 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: If fuel burns, chemical energy is converted into thermal energy., Question: What do fires ignited with fuel convert energy into? (A) rockets (B) oil (C) Light (D) guns (E) Heat (F) warmth (G) thrust (H) engines
Output:
C