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").

[EX Q]: Fact1: heat can change the state of matter, Fact2: Matter exists in a solid, liquid or gas state and can change forms., Question: _ can change liquid to gas. (A) magnetism (B) cycles (C) energy (D) vapors (E) condensation (F) gravity (G) thirst (H) Heat
[EX A]: H

[EX Q]: Fact1: Precipitation increases moisture., Fact2: Rain is liquid precipitation., Question: what increases moisture? (A) density (B) the sun (C) wind (D) rain (E) Honey (F) 17 (G) droughts (H) Type O
[EX A]: D

[EX Q]: Fact1: an animal requires energy to move, Fact2: All foods provide energy., Question: What do animals require to move? (A) babies (B) food (C) warmth (D) air (E) oven (F) heat (G) oxygen (H) children
[EX A]:
B