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").

Q: Fact1: wind and rain cause erosion, Fact2: Water, in the form of rain, is the most effective agent of erosion., Question: What causes erosion the most? (A) streams (B) motion (C) LEDs (D) water (E) Roads (F) rivers (G) Winter (H) wind

A: D
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Q: Fact1: Cancer cells divide more often than normal cells, and grow out of control., Fact2: Cancer is an example of a mutation in cells., Question: What divide more often than normal cells, and grow out of control? (A) white blood cells (B) Most plants (C) hair cells (D) skin cells (E) Smoking (F) peachleaf willow (G) mutated cells (H) cigarettes

A: G
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Q: Fact1: pesticides can cause pollution, Fact2: Air pollution harms the ecosystem., Question: Harm to the ecosystem can come from (A) pesticides (B) fossil fuels (C) global warming (D) cell mutations (E) mechanical weathering (F) flooding (G) vehicles (H) under population

A:
A
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