Q: 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: fanning a fire increases the oxygen near the fire, Fact2: Fire needs oxygen to continue burning., Question: What keeps a fire burning? (A) energy (B) heat (C) Covering it with dirt (D) sun's heat (E) Removing fuel (F) power (G) fanning (H) Dousing it with water
A:
G