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: an animal usually requires a warm body temperature for survival, Fact2: Mammals are also warm-blooded and are covered with hair or fur., Question: What helps maintain body temperature? (A) hats (B) Lift (C) the inside of a refrigerator (D) fur (E) skin (F) arctic winds (G) freezing water (H) hair
[A]: D


[Q]: Fact1: lightning can cause a forest fire, Fact2: Forest fires are bad for the environment., Question: Lightning can be bad for what? (A) the environment (B) rainstorms (C) destruction (D) visibility (E) thunder (F) the sun (G) The weather. (H) transportation
[A]: A


[Q]: Fact1: if a living thing becomes too cold then that living thing will die, Fact2: Hypothermia, a drop in the body's normal core temperature, can be caused by overexposure to cold., Question: Which of the following can cause a living thing to die? (A) Sleep (B) Hypothermia (C) viruses (D) dry conditions (E) Homeostasis (F) hyperthyroidism (G) Hydration (H) Pesticides
[A]:
B