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").

[Q]: Fact1: condensing means changing from a gas into a liquid by reducing heat energy, Fact2: When a gas condenses to form a liquid it absorbs heat., Question: What does reducing heat change gas into? (A) water (B) solutes (C) energy (D) rock (E) sweating (F) tube (G) liquid (H) freon
[A]: G

[Q]: Fact1: ultraviolet light causes sunburn, Fact2: Serious skin cancer is caused by sunburns in childhood., Question: What can develop as a result of too much exposure to ultraviolet light in childhood? (A) Sunflower syndrome (B) influenza (C) Hearing loss (D) hyperthyroidism (E) disease (F) symptoms (G) Lung cancer (H) Skin cancer
[A]: H

[Q]: Fact1: Fish have a centralized nervous system with a brain., Fact2: Nervous A reptile has a brain and nervous system., Question: What organs do both fishes and reptiles have? (A) legs (B) they all walk on land (C) gills (D) the eyes (E) protected (F) brains (G) alveoli (H) vision
[A]:
F