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: Animals use saturated fatty acids to store energy., Fact2: All dogs are animals ., Question: Where do dogs store energy? (A) Something coming from a gland (B) saturated fatty acids (C) Earth orbiting the Sun (D) the environment (E) Slowing the transfer of heat (F) an organism's body (G) it keeps an organism warm (H) it helps plants in growing
B