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").
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Question: Fact1: Cells are the basic units of the structure and function of living things., Fact2: Tigers are the largest of the living cats., Question: Cells are the basic units of the structure and function of what? (A) water (B) mammals (C) ice (D) tigers (E) animals (F) humans (G) plants (H) the Sun

Answer: D


Question: Fact1: hydropower requires damming a river, Fact2: Another source of energy is hydropower., Question: What is a source of energy? (A) fossil fuels (B) cooking (C) damming a river (D) sleeping (E) napping (F) Electrical energy (G) our nearest star (H) sunlight

Answer: C


Question: Fact1: when a gas in an open container evaporates , that gas spreads out into the air, Fact2: Deadly carbon monoxide gas from the generator s exhaust can spread throughout enclosed spaces., Question: carbon monoxide gas from a generator's exhaust has been what (A) transportation (B) air pollution (C) projectiles (D) destroyed crops (E) destruction (F) evaporated (G) danger (H) Car accidents

Answer:
F