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").

Input: Consider Input: Fact1: global warming is when worldwide temperature increases, Fact2: Global warming is caused by carbon dioxide trapped in the atmosphere., Question: What does carbon dioxide cause? (A) skateboards (B) Greenhouse gases (C) Worldwide temperature increase (D) major threat to health (E) direct damage to the lungs (F) running (G) a lot of human deaths (H) Temperature decrease

Output: C


Input: Consider Input: Fact1: insulated material can be used for keeping warm, Fact2: An insulated cup with a cover is great for keeping beverages warm., Question: How do you keep a cup hot? (A) less water (B) electricity (C) heat energy (D) adding heat (E) energy usage (F) insulation (G) squeeze (H) energy

Output: F


Input: Consider Input: Fact1: poisonous darts are used for defense by sea anemones, Fact2: Poison dart frogs are the source of a toxin used by natives on their poison darts., Question: a toxin is used for defense by what? (A) each species (B) related organisms (C) quail (D) prokaryotic cells (E) dogs (F) antigens (G) sea anemones (H) humans

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Output: G


