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: Climate is generally described in terms of temperature and moisture., Fact2: Humidity is a measure of moisture content of air., Question: Climate is generally described in terms of temperature and what? (A) humidity (B) wind (C) warmer air (D) calibrated (E) percentages (F) matter (G) skin color (H) SI units

Output: A


Input: Consider Input: Fact1: cycles of freezing and thawing water cause ice wedging, Fact2: Water is made up of H2O molecules., Question: what freezes and thaws to cause ice wedging? (A) h2o (B) dams (C) oxygen (D) clouds (E) carbon (F) rain (G) lake (H) H20


Output: A