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: melting means changing from a solid into a liquid by adding heat energy, Fact2: Ice is the solid form of water., Question: What changes ice to water by adding heat energy? (A) mussels (B) melting (C) freezing (D) fertilization (E) storms (F) boiling (G) engines (H) condensation
Example Output: B

Example Input: Fact1: being exposed to wind can cause erosion of soil, Fact2: Soil Erosion Soil erosion is caused by disturbance of a land surface., Question: what can being exposed to wind cause? (A) a lot of human deaths (B) death and devastation (C) increase in carbon (D) forest is destroyed (E) a tree falling (F) disturbance of land surface (G) loss of sunlight (H) low tides
Example Output: F

Example Input: Fact1: Veins generally carry deoxygenated blood., Fact2: Arteries and veins are blood vessels., Question: Vessels carry deoxygenated what? (A) glucose (B) oxygen (C) Joules (D) liquid (E) organs (F) molecules (G) atoms (H) blood
Example Output:
H