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").

Example 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
Example Output: C

Example Input: Fact1: if soil is permeable then water easily flows through that soil, Fact2: Sandy soils are permeable., Question: Water easily flows through what? (A) streams. (B) streams (C) coral reefs (D) sandy soils (E) aqueous solution (F) swamp vegetation (G) calcite (H) Sediment
Example Output: D

Example Input: Fact1: lack of moisture in the air causes low amounts of rainfall, Fact2: If there is enough moisture in the clouds, rain is produced., Question: What's one reason it won't rain? (A) fissures of hot, acidic water (B) a hemisphere is tilted away from the sun (C) Warm and cold air meet (D) The clouds don't have enough water (E) The clouds have too much water (F) Too much moisture in the environment (G) decreases the freezing point (H) erosion from rivers
Example Output:
D