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 Input:
Fact1: an aquatic animal requires great amounts of water to survive, Fact2: Beavers are primarily aquatic animals., Question: what requires great amounts of water to survive (A) sunlight (B) beavers (C) octopus (D) mussels (E) trout (F) carbon (G) oxygen (H) amphibians

Ex Output:
B


Ex Input:
Fact1: a compass is used to navigate oceans, Fact2: And to the east is the Atlantic Ocean., Question: what is a compass used to navigate? (A) density (B) lamphreys (C) marine (D) outer space (E) their speed (F) Antarctica (G) non-magnetic planets (H) the Atlantic

Ex Output:
H


Ex Input:
Fact1: Roots have primary and secondary meristems for growth in length and width., Fact2: Water in the soil is absorbed by the roots of plants., Question: What is the function of the part of a plant that has meristems? (A) it needs them (B) photosynthesis (C) Exfoliation (D) Absorbing water (E) plant reproduction (F) protect them (G) absorb light energy (H) survival

Ex Output:

D