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: melting means changing from a solid into a liquid by adding heat energy, Fact2: Ice is the solid form of water., Question: What changes ice to water by adding heat energy? (A) mussels (B) melting (C) freezing (D) fertilization (E) storms (F) boiling (G) engines (H) condensation
B

Fact1: shelter is used for protection by animals against weather, Fact2: Many animals use sponges for shelter., Question: What can animals use for protection? (A) hair (B) bushes (C) keratin (D) food (E) shells (F) appendages (G) energy (H) sponges
H

Fact1: Animals use saturated fatty acids to store energy., Fact2: Cows are social animals., Question: what uses saturated fatty acids to store energy? (A) bushes (B) cows (C) Raven (D) humans (E) koalas (F) birds (G) cattle (H) Man

B