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").

[EX Q]: Fact1: Coral reefs provide food and shelter to many ocean organisms., Fact2: Coral reefs occur mainly as numerous patch reefs., Question: Where is the name of a habitat where a variety of ocean organisms often seek food and shelter? (A) gastropod shells (B) body water (C) seaweed (D) more abundant (E) whale (F) coastlines (G) algae (H) patch reefs
[EX A]: H

[EX Q]: Fact1: if fossils of an animal or plant are found in a place then that animal or plant used to live in that place, Fact2: Fossils are the remains of prehistoric life., Question: What found in a place shows that animal or plant used to live in that place? (A) remains (B) Echinoids (C) dirt (D) Earthworms (E) unique (F) an image (G) rocks (H) water
[EX A]: A

[EX Q]: Fact1: Echinoderms lack respiratory and excretory systems., Fact2: Echinoderms are represented by the starfish., Question: starfish lack what kind of system? (A) respiratory (B) critical organs (C) alveoli (D) heat or cold (E) hydration (F) Bodily water (G) food and shelter (H) frontal zones
[EX A]:
A