Given the task definition and input, reply with output. 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").

Fact1: burning wood is used to produce heat, Fact2: Heat is kinetic energy., Question: Burning wood is used to produce what type of energy? (A) Light (B) warmth (C) potential (D) Fuel cells (E) food (F) electrical (G) mechanical (H) kinetic

H