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: Viruses cause many human diseases., Fact2: Some smallpox viruses are maintained in laboratories., Question: What can smallpox cause? (A) contamination (B) harmful substances (C) vaccines (D) photosynthesis (E) extinction (F) cellular respiration (G) Destroy crops (H) human disease
Example Output: H

Example Input: Fact1: erosion causes a river to become deeper and wider, Fact2: Weathering and erosion continue to shape it today., Question: Weathering causes what to become deeper and wider? (A) a landslide (B) Sediment (C) a mountain (D) a volcano (E) soils (F) rock (G) flooding (H) a river
Example Output: H

Example Input: Fact1: Blood pressure is highest in arteries and lowest in veins., Fact2: Veins take blood to the heart., Question: Where is blood pressure lowest? (A) Under 32 degrees (B) aqueous solution (C) It decreases (D) during the day (E) Warm air moving into cold air (F) critical organs (G) blood goes to the heart (H) the rest of the body
Example Output:
G