Given the task definition and input, reply with output. 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: if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past, Fact2: Most fossils are formed when sediment is deposited by wind or water., Question: What type of material is a fossil formed? (A) shells (B) coral reefs (C) In ice (D) On a leaf (E) unique (F) segmented (G) On grass (H) In sediment
H