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").

Input: Consider Input: Fact1: chemical weathering causes iron in rock to oxidize, Fact2: Oxides Oxides Oxides are elements combined with oxygen., Question: Chemical weathering causes iron in rock to combine with what? (A) uranium (B) oxygen (C) cartilage (D) nothing (E) an object (F) vacuum (G) energy (H) heat

Output: B


Input: Consider 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

Output: F


Input: Consider Input: Fact1: operating an automobile usually requires fossil fuels, Fact2: Energy pollution Cars operate mainly on gasoline, a fossil fuel., Question: Operating an automobile usually requires what from gasoline? (A) hydrogen and oxygen (B) adjusting the seats (C) washing the windshield (D) heat energy (E) energy pollution (F) honking the horn (G) scarce resources (H) food and shelter


Output: E