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: cross-pollination increases genetic diversity, Fact2: Evolution requires genetic diversity., Question: What does evolution require? (A) Time and energy (B) Plant reproduction (C) cross-pollination (D) Reproduction (E) gene flow (F) coded genes (G) circulatory systems (H) animals with backbones
[A]: C


[Q]: Fact1: erosion of soil has a negative impact on the environment, Fact2: Much of the landscape is scarred by severe soil erosion., Question: What is scarred by a negative impact on the environment? (A) mines (B) deforestation (C) skin (D) bushes (E) water (F) landscape (G) coastlines (H) clouds
[A]: F


[Q]: Fact1: the Earth being tilted on its rotating axis causes seasons, Fact2: Spring, summer,autumn and winter are seasons., Question: the Earth being tilted on its rotating axis causes what? (A) Weather (B) Winter (C) rest (D) spring (E) wind (F) Night and Day (G) Gravity (H) rainfall
[A]:
B