You will be given a definition of a task first, then some input of the task.
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").

Fact1: a sandbar is formed by water moving sediment downstream, Fact2: Sandbars are preferred nesting habitat., Question: What type of habitat can be formed by sediment moved downstream by water? (A) watershred (B) caves (C) desert (D) coral reef (E) savannah (F) streams (G) loose soil (H) nesting
Output:
H