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: Populations of viruses do not grow through cell division because they are not cells., Fact2: Viruses are the cause of many diseases., Question: What aren't diseases caused by? (A) ovaries (B) bacteria (C) A drug. (D) humans (E) cells (F) infection (G) virus (H) cats
Example Output: E

Example Input: Fact1: Hormones are chemical messengers that control many body functions., Fact2: Growth hormone is in many ways an anti-aging hormone., Question: What controls anti-aging? (A) A computer (B) air (C) chemical messengers (D) ice (E) an electric stove (F) Electrical energy (G) water (H) Chemical energy
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