Definition: 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: Fact1: sedimentary rocks are formed by deposition, Fact2: Soils are sand, clay, and organic deposits., Question: What are formed by soil, sand, clay and organic materials? (A) sedimentary rocks (B) loose soil (C) silts (D) swamp vegetation (E) dams (F) fossil fuels (G) coral reef (H) waterways
Output:
A