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: oil is formed by layers of sediment pushing down on decomposing algae, Fact2: When the algae die they decompose., Question: Oil is formed when sediment layers push on what sort of algae? (A) coral (B) living (C) rich (D) healthy (E) dead (F) life (G) fungi (H) peat
E