Instructions: 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: mechanical weathering is when rocks are broken down by mechanical means, Fact2: Mechanical weathering produces detritus., Question: What is formed when rocks break down? (A) plants (B) clouds (C) sand (D) coastlines (E) detritus (F) deltas (G) water (H) alluvial
Output:
E