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: Male dogs use pheromones in urine to mark their territory., Fact2: Pheromones are natural aphrodisiacs., Question: What do male dogs use in urine to mark their territory? (A) Natural aphrodisiacs (B) competing for resources (C) Tails (D) Urine  cleaner (E) Something coming from a gland (F) Chemical energy (G) an area swollen with pus (H) Chew toys
A

Fact1: smell is used for finding food by some animals, Fact2: Olfaction is the sense of smell., Question: What do some animals use to find food? (A) Echinoids (B) breakfast (C) time travel (D) Energy (E) streams. (F) heat energy (G) nature (H) olfaction
H

Fact1: Fission takes place when an animal divides into two parts., Fact2: Asexual reproduction is by fragmentation, budding, or fission., Question: What is it called when an animal divides into two parts? (A) limb amputation (B) The bending of a ray of light (C) Veins and arteries. (D) epidermis and dermis (E) the body's largest organ (F) Leptospirosis (G) refraction of light (H) asexual reproduction

H