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: Cells that divide uncontrollably may form a tumor, or abnormal mass of cells., Fact2: Surgery to remove the tumor is an option., Question: what might cells that divide uncontrollably need? (A) removal surgery (B) aqueous solution (C) turn to a doctor (D) an organism's body (E) kinetic energy (F) survival (G) Chemical energy (H) bioaerosols

A: A
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Q: Fact1: Pneumonia may be caused by an infection or injury of the lungs., Fact2: Mammals breathe air with lungs., Question: What may be caused by an infection or injury of the organs used to breathe air? (A) Toxicity (B) smoking (C) fertilization (D) pneumonia (E) a broken leg (F) oxygenation (G) Dehydration (H) the skin

A: D
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Q: Fact1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, Fact2: Coal-fired power plants contribute to acid rain., Question: what can power plants cause? (A) Pesticides (B) wind (C) heat energy (D) acid rain (E) friction (F) Pollution (G) coal (H) oil

A:
D
****