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: Bottleneck effect occurs when a population suddenly gets much smaller., Fact2: Fishing pressure is relatively low due to a smaller human population., Question: What can make the bottleneck effect occur in fish? (A) increased habitat (B) acid rain (C) humans (D) Winter (E) increased food (F) storms (G) increased resources (H) Toxicity
Example Output: C

Example Input: Fact1: tectonic plates being pushed together causes earthquakes, Fact2: Plate Tectonics Movement of earth's surface reflects large scale convection of upper mantle., Question: What could happen because of movement in the upper mantle? (A) Earthquakes (B) Water expanding (C) Floods (D) Wildfires (E) erosion (F) Tornados (G) heating liquids (H) Movement
Example Output: A

Example Input: Fact1: friction causes the speed of an object to decrease, Fact2: Friction is a Force that opposes motion., Question: what causes the speed of an object to decrease (A) kilometers (B) kinetic energy (C) Electrical energy (D) increase h2o (E) principals of aerodynamics (F) basic building blocks of life (G) opposing motion force (H) increase oxygen
Example Output:
G