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: 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

Output: A


Input: Consider Input: Fact1: friction is used for stopping a vehicle by brakes, Fact2: Brakes are applied to the rear wheels on No. 2 truck., Question: What can be used to stop trucks? (A) water (B) noise (C) friction (D) vibration (E) magic (F) fluid (G) fire (H) Chemicals


Output: C