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: a delta is formed by deposition of sediment at the mouth of a river by water fanning out, Fact2: Alluvial deposits can form deltas where the river flows into a lake or ocean., Question: What type of deposit fans out into the ocean? (A) coral reef (B) Loose (C) rocks (D) patch reefs (E) erosion (F) alluvial (G) loose soil (H) Sediment
Output:
F