Teacher: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").
Teacher: Now, understand the problem? Solve this instance: Fact1: a sandbar is formed by water moving sediment downstream, Fact2: Native species, such as cranes, use open water and barren sandbars for roosting at night., Question: What happens on the formation where water moves sediment downstream? (A) mechanical (B) watershred (C) erosion (D) cranes roost (E) near the shoreline (F) streams. (G) it can be seen (H) swamp vegetation
Student:
D